Description
For this assignment, write a program that will generate three randomly sized sets of random numbers.
Random Number Generation
In the first three programs, the user has been asked for input. This program will be different. Rather than asking the user how many values are in a set of numbers or even what the values are, a random number generator will be used to determine the size of a set and the actual values in the set.
To use the random number generator, first add a #include statement for the cstdlib library to the top of the program:
#include <cstdlib>
Next, initialize the random number generator. This is done by calling the srand function and passing in an integer value (known as a seed value). This should only be done ONE time and it MUST be done before actually getting a random number. A value of 1 (or any integer literal) will generate the same sequence of “random” numbers every time the program is executed. This can be useful for debugging:
srand(1);
To get a different series of random numbers each time the program is run, the actual time that the program is run can be passed as the seed value for the random number generator. This is done as follows:
srand(time(0));
If the time function is used, make sure to include the ctime library as well.
Note: the two srand instructions that are listed above are simple examples of how to use the instruction. In a program, ONLY ONE version will be used.
Now that the random number generator has been initialized, a random number can be generated by calling the rand function:
num = rand();
The above line of C++ code will generate a “random” integer between 0 and RAND_MAX and saves the value in an integer variable named num. RAND_MAX is a pre-defined constant that is equal to the maximum possible random number. It is implementation dependent but is guaranteed to be at least 32,767.
Modulus division can be used to restrict the “random” integer to a smaller range:
num = rand() % 7;
will produce a value between 0 and 6. To change the range to 1 through 7, simply add 1:
num = rand() % 7 + 1;
To get random values that are within a specified range that starts at a value other than 0 or 1:
num = minimum_value + (rand() % (maximum_value - minimum_value + 1));
So, to get values within the range 3 – 17:
num = 3 + (rand() % (17 - 3 + 1));
Basic Program Logic
Initialize the random number generator using a seed value of 17. Note: other seed values may be used to produce different results. However, the version that is handed in for grading MUST use a seed value of 17.
Generate a random number between 1 and 25. This will be the number of values in the first set. Display the number of values in the set with an appropriate label.
In a for loop that executes exactly “number of values in the first set” number of times, generate a random number (no restrictions), and display the random number. Make sure that there are only 5 values displayed per line.
Generate a random number between 1 and 50. This will be the number of values in the second set. Display the number of values in the set with an appropriate label.
In a while loop that executes exactly “number of values in the second set” number of times, generate a random number (no restrictions), and display the random number. Make sure that there are only 6 values displayed per line.
Generate a random number between 1 and 250. This will be the number of values in the third set. Display the number of values in the set with an appropriate label.
In a do while loop that executes exactly “number of values in the third set” number of times, generate a random number (no restrictions), and display the random number. Make sure that there are only 7 values displayed per line.
Symbolic Constants
This program MUST use at least 6 symbolic constants.
Three of the constants should be for the maximum values for the sizes of the sets of numbers. The values should be 25, 50, and 250.
The other three constants should be for the maximum number of values to be displayed for each set of numbers. The values should be 5, 6, and 7.
More symbolic constants may be added to the code if necessary.
Program Requirements
- Include line documentation. There is no need to document every single line, but logical “chunks” of code should be preceded by a line or two that describes what the “chunk” of code does. This will also be a part of every program that is submitted for the remainder of the semester.
- To use the random number generator, add #include <cstdlib> at the beginning of the program
- The program MUST use the 6 symbolic constants described above.
- Make sure that the copy of the program that is handed in uses srand(17); to set the seed value for the random number generator.
- The numbers in each set MUST be displayed in columns with the LAST digit of the values lined up.
- Hand in a copy of the source code (the CPP file) using Blackboard.
Output
Run 1 (using srand(17);) on Windows PC
There are 20 numbers in the first set of numbers.
26602 30017 18297 20363 13015
28509 15290 29003 24399 3339
28849 17055 19424 4588 15756
6098 11834 1351 21383 18431
There are 6 numbers in the second set of numbers.
14763 14082 4564 25482 30678 20183
There are 16 numbers in the third set of values.
18376 20694 32234 8292 29828 23406 31490
25791 15822 24763 23255 15434 32590 15383
108 24271
Run 2 (using srand(17);) on a Mac
There are 20 numbers in the first set of numbers.
507111939 1815247477 1711656657 122498987 1551140683
1717468248 1161144809 1176904574 1910786348 1115693598
1782579629 271465306 1262131714 1951735779 10529728
879479442 281039393 1112538398 292740757 208867622
There are 7 numbers in the second set of numbers.
27064583 1755396964 826431462 2056836685 1209899036 250444609
154595343
There are 79 numbers in the third set of values.
1021029944 2055929278 991495116 1732797539 1102501006 1245501526 1621040173
1844641769 1820283491 452598075 428768851 1510443072 612519917 1733124948
162813128 506076018 1584392406 85944842 1365948710 899782540 65307606
260790425 90549448 1446150460 230864474 1783748036 581528932 558682627
980407305 63551704 814116569 1238860146 1668516157 909588173 1659824265
853847325 1126262021 1164922289 240501524 544890214 1099555890 1139060795
1525552207 1148681516 12252882 1923241309 2140309366 1828427112 2030966461
200740962 156538897 281774304 579285693 1511270400 1632519731 1508044845
1107708021 712973104 2127692315 227048361 2070846255 445540856 2077173350
1558327818 105078314 819665564 11538643 656444671 1242090858 132517919
288122694 2049977720 1895391219 67798135 1316922035 1542176263 1376316598
1206700749 183926175
Run 3 (using srand(17);) on CodeChef
There are 16 numbers in the first set of numbers.
3978157 263514239 1969574147 1833982879 488658959
231688945 1043863911 1421669753 1942003127 1343955001
461983965 602354579 726141576 1746455982 1641023978
1153484208
There are 28 numbers in the second set of numbers.
1559964282 1484758023 360805106 1295207561 808154853 1578628148
1764616483 134664533 1026318808 487190350 2084406199 494281178
767599596 1164840817 498259336 1031113836 986931316 184758567
1519772795 1218620261 1228622478 793958901 1013139741 425093831
1255942866 1615494320 1151235407 854915200
There are 151 numbers in the third set of values.
157235967 1800402877 521515284 1641993990 13724335 1816722845 302665195
1592352484 1433855680 437329729 471187644 1921046030 374252280 965468822
541161979 1539093097 1463728158 1572275815 378540765 1648486725 944564962
1597161027 729625555 1738523863 462817120 1154719386 846983081 2078311440
158471146 1701898282 1039862443 315707113 1354817511 1561377727 1957701104
1368541847 1230616925 112882651 813410683 516988957 550212380 1284598327
290551340 924464661 102583501 831713319 316074110 1566311660 256505486
694614876 1067314737 1201070448 144292255 1796940293 792110664 607109375
804176031 1639093745 537937167 962647177 1193508379 1577799610 1278354291
400842243 991693690 1088571747 1769384090 74826967 1201454398 435311125
591815924 1751666779 1719909452 882367264 528647792 1822492953 1714080583
844721902 1241320965 1970586069 1539336778 161152055 1024172870 1683629033
1958092348 1816283534 143254760 614784731 1307893631 681191928 1577431909
353918363 111507890 708302552 754760606 1103201580 1796874299 376661048
1178028547 850845049 811972173 1769844472 455028180 384397977 504728088
983675972 59407282 71325024 1828397875 1300728248 2041911093 1220251005
1461880303 918600315 756396391 1272489003 587400201 899651151 1887273734
1895293833 1580843079 1317221995 101728548 1692350970 2025524547 856489154
648068902 1674915198 1233150202 1826097450 378276600 2045122375 1448458274
833304780 282036704 1953186362 1816980753 341443986 2024511386 1497894980
1642172234 1918938832 570662337 956568889 690055499 1327058728 81574244
1277455701 79226232 1968847979 1025265886
Extra Credit 1
For up to 5 points of extra credit, add code that will count a specific type of number.
Start by displaying a menu of the three types of numbers to the user and getting the user’s selection. The menu should resemble the following:
***** Number Types ***** E)ven O)dd Z)ero What type of number would you like to count?
The user’s selection MUST be handled as a character value and BOTH upper and lowercase values should be accepted. The value that the user enters should be error checked with a loop (choice is left to you) that will display an error message and allow the user to re-enter their value until a valid value is entered.
Once a valid number type has been made by the user, count that specific type of number in each set and display the count for each set.
Note about extra credit: the points will ONLY be awarded if the required portions of the assignment work correctly. In other words, don’t take short cuts in the rest of the program because it is assumed that 5 extra points will be awarded.
Extra Credit 1 Output (using srand(17);) on Windows PC
***** Number Types *****
E)ven
O)dd
Z)ero
What type of number would you like to count? e
There are 20 numbers in the first set of numbers.
26602 30017 18297 20363 13015
28509 15290 29003 24399 3339
28849 17055 19424 4588 15756
6098 11834 1351 21383 18431
There are 7 even numbers in the first set of numbers
There are 6 numbers in the second set of numbers.
14763 14082 4564 25482 30678 20183
There are 4 even numbers in the second set of numbers
There are 16 numbers in the third set of values.
18376 20694 32234 8292 29828 23406 31490
25791 15822 24763 23255 15434 32590 15383
108 24271
There are 11 even numbers in the third set of numbers
Extra Credit 1 Output (using srand(17);) on a Mac
***** Number Types *****
E)ven
O)dd
Z)ero
What type of number would you like to count? O
There are 20 numbers in the first set of numbers.
507111939 1815247477 1711656657 122498987 1551140683
1717468248 1161144809 1176904574 1910786348 1115693598
1782579629 271465306 1262131714 1951735779 10529728
879479442 281039393 1112538398 292740757 208867622
There are 10 odd numbers in the first set of numbers
There are 7 numbers in the second set of numbers.
27064583 1755396964 826431462 2056836685 1209899036 250444609
154595343
There are 4 odd numbers in the second set of numbers
There are 79 numbers in the third set of values.
1021029944 2055929278 991495116 1732797539 1102501006 1245501526 1621040173
1844641769 1820283491 452598075 428768851 1510443072 612519917 1733124948
162813128 506076018 1584392406 85944842 1365948710 899782540 65307606
260790425 90549448 1446150460 230864474 1783748036 581528932 558682627
980407305 63551704 814116569 1238860146 1668516157 909588173 1659824265
853847325 1126262021 1164922289 240501524 544890214 1099555890 1139060795
1525552207 1148681516 12252882 1923241309 2140309366 1828427112 2030966461
200740962 156538897 281774304 579285693 1511270400 1632519731 1508044845
1107708021 712973104 2127692315 227048361 2070846255 445540856 2077173350
1558327818 105078314 819665564 11538643 656444671 1242090858 132517919
288122694 2049977720 1895391219 67798135 1316922035 1542176263 1376316598
1206700749 183926175
There are 38 odd numbers in the third set of numbers
Extra Credit 1 Output (using srand(17);) on CodeChef
***** Number Types *****
E)ven
O)dd
Z)ero
What type of number would you like to count? Z
There are 16 numbers in the first set of numbers.
3978157 263514239 1969574147 1833982879 488658959
231688945 1043863911 1421669753 1942003127 1343955001
461983965 602354579 726141576 1746455982 1641023978
1153484208
There are 0 zeroes in the first set of numbers
There are 28 numbers in the second set of numbers.
1559964282 1484758023 360805106 1295207561 808154853 1578628148
1764616483 134664533 1026318808 487190350 2084406199 494281178
767599596 1164840817 498259336 1031113836 986931316 184758567
1519772795 1218620261 1228622478 793958901 1013139741 425093831
1255942866 1615494320 1151235407 854915200
There are 0 zeroes in the second set of numbers
There are 151 numbers in the third set of values.
157235967 1800402877 521515284 1641993990 13724335 1816722845 302665195
1592352484 1433855680 437329729 471187644 1921046030 374252280 965468822
541161979 1539093097 1463728158 1572275815 378540765 1648486725 944564962
1597161027 729625555 1738523863 462817120 1154719386 846983081 2078311440
158471146 1701898282 1039862443 315707113 1354817511 1561377727 1957701104
1368541847 1230616925 112882651 813410683 516988957 550212380 1284598327
290551340 924464661 102583501 831713319 316074110 1566311660 256505486
694614876 1067314737 1201070448 144292255 1796940293 792110664 607109375
804176031 1639093745 537937167 962647177 1193508379 1577799610 1278354291
400842243 991693690 1088571747 1769384090 74826967 1201454398 435311125
591815924 1751666779 1719909452 882367264 528647792 1822492953 1714080583
844721902 1241320965 1970586069 1539336778 161152055 1024172870 1683629033
1958092348 1816283534 143254760 614784731 1307893631 681191928 1577431909
353918363 111507890 708302552 754760606 1103201580 1796874299 376661048
1178028547 850845049 811972173 1769844472 455028180 384397977 504728088
983675972 59407282 71325024 1828397875 1300728248 2041911093 1220251005
1461880303 918600315 756396391 1272489003 587400201 899651151 1887273734
1895293833 1580843079 1317221995 101728548 1692350970 2025524547 856489154
648068902 1674915198 1233150202 1826097450 378276600 2045122375 1448458274
833304780 282036704 1953186362 1816980753 341443986 2024511386 1497894980
1642172234 1918938832 570662337 956568889 690055499 1327058728 81574244
1277455701 79226232 1968847979 1025265886
There are 0 zeroes in the third set of numbers
Extra Credit 2
For up to an additional 5 points of extra credit, add code that will “mark” the specific type of number that the user has selected with a “**” after the number.
Note about extra credit 2: the points will ONLY be awarded if the required portions of the assignment work correctly AND if extra credit 1 works correctly.
Extra Credit 2 Output (using srand(17);) on Windows PC
***** Number Types *****
E)ven
O)dd
Z)ero
What type of number would you like to count? e
There are 20 numbers in the first set of numbers.
26602** 30017 18297 20363 13015
28509 15290** 29003 24399 3339
28849 17055 19424** 4588** 15756**
6098** 11834** 1351 21383 18431
There are 7 even numbers in the first set of numbers
There are 6 numbers in the second set of numbers.
14763 14082** 4564** 25482** 30678** 20183
There are 4 even numbers in the second set of numbers
There are 16 numbers in the third set of values.
18376** 20694** 32234** 8292** 29828** 23406** 31490**
25791 15822** 24763 23255 15434** 32590** 15383
108** 24271
There are 11 even numbers in the third set of numbers
Extra Credit 2 Output (using srand(17);) on a Mac
***** Number Types *****
E)ven
O)dd
Z)ero
What type of number would you like to count? O
There are 20 numbers in the first set of numbers.
507111939** 1815247477** 1711656657** 122498987** 1551140683**
1717468248 1161144809** 1176904574 1910786348 1115693598
1782579629** 271465306 1262131714 1951735779** 10529728
879479442 281039393** 1112538398 292740757** 208867622
There are 10 odd numbers in the first set of numbers
There are 7 numbers in the second set of numbers.
27064583** 1755396964 826431462 2056836685** 1209899036 250444609**
154595343**
There are 4 odd numbers in the second set of numbers
There are 79 numbers in the third set of values.
1021029944 2055929278 991495116 1732797539** 1102501006 1245501526 1621040173**
1844641769** 1820283491** 452598075** 428768851** 1510443072 612519917** 1733124948
162813128 506076018 1584392406 85944842 1365948710 899782540 65307606
260790425** 90549448 1446150460 230864474 1783748036 581528932 558682627**
980407305** 63551704 814116569** 1238860146 1668516157** 909588173** 1659824265**
853847325** 1126262021** 1164922289** 240501524 544890214 1099555890 1139060795**
1525552207** 1148681516 12252882 1923241309** 2140309366 1828427112 2030966461**
200740962 156538897** 281774304 579285693** 1511270400 1632519731** 1508044845**
1107708021** 712973104 2127692315** 227048361** 2070846255** 445540856 2077173350
1558327818 105078314 819665564 11538643** 656444671** 1242090858 132517919**
288122694 2049977720 1895391219** 67798135** 1316922035** 1542176263** 1376316598
1206700749** 183926175**
There are 38 odd numbers in the third set of numbers
Extra Credit 2 Output (using srand(17);) on CodeChef
Please notice that this output is dealing with EVEN numbers, which is different from the Extra Credit 1 Output.
***** Number Types *****
E)ven
O)dd
Z)ero
What type of number would you like to count? E
There are 16 numbers in the first set of numbers.
3978157 263514239 1969574147 1833982879 488658959
231688945 1043863911 1421669753 1942003127 1343955001
461983965 602354579 726141576** 1746455982** 1641023978**
1153484208**
There are 4 even numbers in the first set of numbers
There are 28 numbers in the second set of numbers.
1559964282** 1484758023 360805106** 1295207561 808154853 1578628148**
1764616483 134664533 1026318808** 487190350** 2084406199 494281178**
767599596** 1164840817 498259336** 1031113836** 986931316** 184758567
1519772795 1218620261 1228622478** 793958901 1013139741 425093831
1255942866** 1615494320** 1151235407 854915200**
There are 14 even numbers in the second set of numbers
There are 151 numbers in the third set of values.
157235967 1800402877 521515284** 1641993990** 13724335 1816722845 302665195
1592352484** 1433855680** 437329729 471187644** 1921046030** 374252280** 965468822**
541161979 1539093097 1463728158** 1572275815 378540765 1648486725 944564962**
1597161027 729625555 1738523863 462817120** 1154719386** 846983081 2078311440**
158471146** 1701898282** 1039862443 315707113 1354817511 1561377727 1957701104**
1368541847 1230616925 112882651 813410683 516988957 550212380** 1284598327
290551340** 924464661 102583501 831713319 316074110** 1566311660** 256505486**
694614876** 1067314737 1201070448** 144292255 1796940293 792110664** 607109375
804176031 1639093745 537937167 962647177 1193508379 1577799610** 1278354291
400842243 991693690** 1088571747 1769384090** 74826967 1201454398** 435311125
591815924** 1751666779 1719909452** 882367264** 528647792** 1822492953 1714080583
844721902** 1241320965 1970586069 1539336778** 161152055 1024172870** 1683629033
1958092348** 1816283534** 143254760** 614784731 1307893631 681191928** 1577431909
353918363 111507890** 708302552** 754760606** 1103201580** 1796874299 376661048**
1178028547 850845049 811972173 1769844472** 455028180** 384397977 504728088**
983675972** 59407282** 71325024** 1828397875 1300728248** 2041911093 1220251005
1461880303 918600315 756396391 1272489003 587400201 899651151 1887273734**
1895293833 1580843079 1317221995 101728548** 1692350970** 2025524547 856489154**
648068902** 1674915198** 1233150202** 1826097450** 378276600** 2045122375 1448458274**
833304780** 282036704** 1953186362** 1816980753 341443986** 2024511386** 1497894980**
1642172234** 1918938832** 570662337 956568889 690055499 1327058728** 81574244**
1277455701 79226232** 1968847979 1025265886**
There are 73 even numbers in the third set of numbers
