Submission #712744

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Source Code Expand

#include<stdio.h>
int main()
{
  char s[101];
  int  i;
  int out[2] = {-1, -1};
  int d, cnt;

  cnt = 0;
  d = 0;
  // 文字列の入力
  scanf("%s",s);

  // 文字列の中から数値を抽出する
  for (i=0; i<100; i++) {
        switch(s[i]){
        case '0':
          out[cnt++] = s[i] - '0';
          break;
        case '1':
          out[cnt++] = s[i] - '0';
          break;
        case '2':
          out[cnt++] = s[i] - '0';
          break;
        case '3':
          out[cnt++] = s[i] - '0';
          break;
        case '4':
          out[cnt++] = s[i] - '0';
          break;
        case '5':
          out[cnt++] = s[i] - '0';
          break;
        case '6':
          out[cnt++] = s[i] - '0';
          break;
        case '7':
          out[cnt++] = s[i] - '0';
          break;
        case '8':
          out[cnt++] = s[i] - '0';
          break;
        case '9':
          out[cnt++] = s[i] - '0';
          break;
        case 0:
          // 終端文字なので処理を抜ける
          i = 100;
          break;
        }
  }
  if (out[1] >= 0 ) {
        d = 10 * out[0] + out[1];
  } else {
        d = out[0];
  }
  // 出力
  printf("%d\n",d);
  return 0;
}

Submission Info

Compile Error

./Main.c: In function ‘main’:
./Main.c:12:3: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%s",s);
   ^

Judge Result