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  1. #include <stdio.h>
  2. //再帰を用いて1からnまでの二乗和1^2 + 2^2 + 3^2 + ... + n^2を計算する
  3. int main(void) {
  4. 	int an=0;
  5.     int n;
  6.     for(n = 1;n<=4;n++){
  7.         an = n*n+an;
  8.         printf("1から%dまでの二乗和の値は%d\n", n, an);
  9.     }
  10. 	return 0;
  11. }
  12.  
  13.  
Success #stdin #stdout 0s 5320KB
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stdin
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Standard input is empty
stdout
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1から1までの二乗和の値は1
1から2までの二乗和の値は5
1から3までの二乗和の値は14
1から4までの二乗和の値は30
https://ideone.com/5CB2z7
language:
C (gcc 8.3)
created:
19 hours ago
visibility:
public

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