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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. 	int a=1,b;
  5. 	int sum=0;
  6. 	scanf("%d",&b);
  7. 	while(a<=b){
  8. 		sum+=a;
  9. 		a+=1;
  10.  
  11. 	}
  12. 	printf("1番目からから%d番目までの値は%d",b,sum);
  13. 	return 0;
  14. }
  15.  
Success #stdin #stdout 0.01s 5288KB
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stdin
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44
stdout
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1番目からから44番目までの値は990
https://ideone.com/MLrqBU
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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