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  1. #include <stdio.h>
  2. #include <math.h>
  3.  
  4. typedef struct{
  5. 	int id;
  6. 	double height;
  7. 	double weight;
  8. }Body;
  9.  
  10. int main(void){
  11. 	Body data[5]={{1,165,60},{2,170,68},{3,160,50},{4,180,75},{5,175,80}};
  12. 	int i,j;
  13. 	Body temp;
  14. 	double ave = 0.0;
  15. 	double std = 0.0;
  16.  
  17. 	for(i=0;i<4;i++){
  18. 		for(j=0;j<4-i;j++){
  19. 			if (data[j].height > data[j+1].height){
  20. 				temp = data[j];
  21. 				data[j]=data[j+1];
  22. 				data[j+1]=temp;
  23. 			}
  24. 		}
  25. 	}
  26. 	printf("id height weight\n");
  27. 	for (i=0;i<5;i++){
  28. 		printf("%d %.0f %.0f\n",data[i].id,data[i].height,data[i].weight);
  29. 		}
  30. 		for(i=2;i<5;i++){
  31. 			ave += data[i].height;
  32. 		}
  33. 		ave /=3.0;
  34. 		for(i=2;i<5;i++){
  35. 			std +=(data[i].height-ave)*(data[i].height-ave);
  36. 		}
  37. 		std = sqrt(std/3.0);
  38. 		printf("ave=%.1f\n",ave);
  39. 		printf("std=%.1f\n",std);
  40. 		return 0;
  41. }
Success #stdin #stdout 0s 5288KB
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stdin
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Standard input is empty
stdout
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id height weight
3 160 50
1 165 60
2 170 68
5 175 80
4 180 75
ave=175.0
std=4.1
https://ideone.com/PfSEB2
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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