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  1. #include <stdio.h>
  2.  
  3. int main(void)
  4. {
  5.  
  6. for(int i=1;i<=9;i++){
  7.    if(i=1){ 
  8.     printf("1の段:");
  9.   for(int n=1;n<10;n++){
  10.   	printf("%2d ",i*n);
  11.   }
  12.        printf("\n");
  13.  }
  14. if(i=2){ 
  15.     printf("2の段:");
  16.   for(int n=1;n<10;n++){
  17.   	printf("%2d ",i*n);
  18.   }
  19.        printf("\n");
  20.  }
  21. if(i=3){ 
  22.     printf("3の段:");
  23.   for(int n=1;n<10;n++){
  24.   	printf("%2d ",i*n);
  25.   }
  26.        printf("\n");
  27.  }
  28. if(i=4){ 
  29.     printf("4の段:");
  30.   for(int n=1;n<10;n++){
  31.   	printf("%2d ",i*n);
  32.   }
  33.        printf("\n");
  34.  }
  35. if(i=5){ 
  36.     printf("5の段:");
  37.   for(int n=1;n<10;n++){
  38.   	printf("%2d ",i*n);
  39.   }
  40.        printf("\n");
  41.  }
  42. if(i=6){ 
  43.     printf("6の段:");
  44.   for(int n=1;n<10;n++){
  45.   	printf("%2d ",i*n);
  46.   }
  47.        printf("\n");
  48.  }
  49. if(i=7){ 
  50.     printf("7の段:");
  51.   for(int n=1;n<10;n++){
  52.   	printf("%2d ",i*n);
  53.   }
  54.        printf("\n");
  55.  }
  56. if(i=8){ 
  57.     printf("8の段:");
  58.   for(int n=1;n<10;n++){
  59.   	printf("%2d ",i*n);
  60.   }
  61.        printf("\n");
  62.  }
  63. if(i=9){ 
  64.     printf("9の段:");
  65.   for(int n=1;n<10;n++){
  66.   	printf("%2d ",i*n);
  67.   }
  68.        printf("\n");
  69.   }
  70. }
  71. return 0;
  72. }
  73.  
Success #stdin #stdout 0s 5276KB
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stdin
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Standard input is empty
stdout
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1の段: 1  2  3  4  5  6  7  8  9 
2の段: 2  4  6  8 10 12 14 16 18 
3の段: 3  6  9 12 15 18 21 24 27 
4の段: 4  8 12 16 20 24 28 32 36 
5の段: 5 10 15 20 25 30 35 40 45 
6の段: 6 12 18 24 30 36 42 48 54 
7の段: 7 14 21 28 35 42 49 56 63 
8の段: 8 16 24 32 40 48 56 64 72 
9の段: 9 18 27 36 45 54 63 72 81
https://ideone.com/Ijt2UB
language:
C (gcc 8.3)
created:
10 days ago
visibility:
public

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