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  1. #include <stdio.h>
  2.  
  3. void calculate(int (*m)[4]);
  4. void disp(int (*m)[4]);
  5.  
  6. int main(void) {
  7.  
  8. 	int a[3][4] = {{1,2,3,4},{5,6,7,8},{9,10,11,12}};
  9.  
  10. 	calculate(a);
  11.  
  12. 	return 0;
  13. }
  14.  
  15. void calculate(int (*m)[4]){
  16.  
  17. 	int sum[3]={0};
  18.  
  19. 	for(int i=0;i<3;i++){
  20.  
  21. 		for(int j=0;j<4;j++){
  22.  
  23. 			sum[i] += m[i][j];
  24. 		}
  25. 	}
  26.  
  27. 	for(int k=0;k<3;k++){
  28.  
  29. 		printf("sum%d=%d\n",k+1,sum[k]);
  30. 	}
  31. }
  32.  
Success #stdin #stdout 0s 5320KB
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stdin
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Standard input is empty
stdout
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sum1=10
sum2=26
sum3=42
https://ideone.com/eTRh6o
language:
C (gcc 8.3)
created:
2 days ago
visibility:
public

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