Maplewing

8/11 C: for

Aug 10th, 2015
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C 0.27 KB | None | 0 0
  1. #include <stdio.h>
  2.  
  3. int main(){
  4.     int n;
  5.     scanf("%d", &n);
  6.    
  7.     int sum = 0;
  8.     int i;
  9.     for( i = 1 ; i <= n ; i++ ){
  10.         sum += i;
  11.        
  12.         printf("%d", i);
  13.         if( i != n ){ // 判斷i不是最後一個人
  14.             printf("+");
  15.         }
  16.     }
  17.    
  18.     printf(" = %d", sum);
  19.    
  20.     return 0;
  21. }
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