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  1. #include <stdio.h>
  2. int main()
  3. {
  4. int i, j;
  5. int sum=0;
  6.  
  7. for ( i=1; i<=10; i++){
  8. for ( j=1; j<=i; j++){
  9. sum = sum+1;
  10. printf("1");
  11. }
  12. printf("10");
  13. }
  14.  
  15. printf("sum=%d \n",sum);
  16. return 0;
  17. }
Success #stdin #stdout 0.01s 5280KB
stdin
Standard input is empty
stdout
110111011110111110111111011111110111111110111111111011111111110111111111110sum=55