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  1. #include <stdio.h>
  2.  
  3. int main()
  4.   {
  5.    int y,x;
  6.    for(y=0;y<16;++y,printf("\n"))
  7.      {
  8.       for(x=0;x<16;++x)
  9.         {
  10.          if(!(x+y)) printf("  ");
  11.          else if(!x) printf("%2d",y);
  12.          else if(!y) printf("%4d",x);
  13.          else printf("%4d",y*x);
  14.         }
  15.      }
  16.    return 0;
  17.   }
Success #stdin #stdout 0s 2292KB
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stdin
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Standard input is empty
stdout
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     1   2   3   4   5   6   7   8   9  10  11  12  13  14  15
 1   1   2   3   4   5   6   7   8   9  10  11  12  13  14  15
 2   2   4   6   8  10  12  14  16  18  20  22  24  26  28  30
 3   3   6   9  12  15  18  21  24  27  30  33  36  39  42  45
 4   4   8  12  16  20  24  28  32  36  40  44  48  52  56  60
 5   5  10  15  20  25  30  35  40  45  50  55  60  65  70  75
 6   6  12  18  24  30  36  42  48  54  60  66  72  78  84  90
 7   7  14  21  28  35  42  49  56  63  70  77  84  91  98 105
 8   8  16  24  32  40  48  56  64  72  80  88  96 104 112 120
 9   9  18  27  36  45  54  63  72  81  90  99 108 117 126 135
10  10  20  30  40  50  60  70  80  90 100 110 120 130 140 150
11  11  22  33  44  55  66  77  88  99 110 121 132 143 154 165
12  12  24  36  48  60  72  84  96 108 120 132 144 156 168 180
13  13  26  39  52  65  78  91 104 117 130 143 156 169 182 195
14  14  28  42  56  70  84  98 112 126 140 154 168 182 196 210
15  15  30  45  60  75  90 105 120 135 150 165 180 195 210 225
https://ideone.com/tlDxBq
language:
C (gcc 8.3)
created:
9 years ago
visibility:
public

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