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C / ANSI-C » Language Basics » For Screenshots  Nested for #include <stdio.h> void main() {    long sum = 0L;     int i = 1;     /* Outer loop control variable     */    int j = 1;     /* Inner loop control variable     */    int count = 10; /* Number of sums to be calculated */       for( i = 1 ; i <= count ; i++ )    {      sum = 0L;  /* Initialize sum for the inner loop */      /* Calculate sum of integers from 1 to i */      for(j = 1 ; j <= i ; j++ )        sum += j;        printf("\n%d\t%ld", i, sum); /* Output sum of 1 to i */    } }                     Related examples in the same category 1. For statement: backwards 2. For : no first part 3. For: no init and loop backwards 4. For loop: List ten integers 5. For loop: Draw a box 6. Use int as the while loop controller 7. Simplest for loop: user control the loop 8. Use for loop as the user selection's controller 9. Demonstrate multiple loop control variables 10. Use function as for loop control variable 11. For loop without first part 12. For loop without the third part 13. See the for loop terminating condition 14. For loop condition: loop will not execute 15. For loop: bigger increase 16. Prime number tester 17. nested for Demo 18. Use integer as the for loop controller 19. Set the init value for a for loop 20. More calculation in the for statement 21. Simplest for loop 22. Reverse order of for loop 23. Two condition for ending a for loop 24. Three level nested for loop 25. A simple for loop 26. More complex for loop: more statements 27. Infinite for loop with break 28. For loop with init value, stop condition and incr 29. Use char as int in a for loop 30. Nested for loop demo