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  1.  
  2.  
  3. #include <stdio.h>
  4.  
  5. int main(void) {
  6. int i,j,t;
  7. for(i=1;i<=9;i++)
  8. {printf("%dの段:",i);
  9. for(j=1;j<=9;j++)
  10. {t=i*j;
  11. printf("%d ",t);
  12. }
  13. printf("\n");
  14. }
  15. return 0;
  16. }
Success #stdin #stdout 0s 5308KB
stdin
Standard input is empty
stdout
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