Submission #2408831

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Source Code Expand

#include <cstdio>
#include <cstring>

using namespace std;

int main() {
  int i, j;
  int n;
  char S[55][55];
  int num_alphabet[55][26] = {};
  int least_alphabet[26];
  for(i = 0; i < 26; i++) {
    least_alphabet[i] = 100;
  }
  scanf("%d", &n);
  for (i = 0; i < n; i++) {
    scanf("%s", S[i]);
  }
  for (i = 0; i < n; i++) {
    for (j = 0; j < strlen(S[i]); j++) {
      int d = (int)S[i][j] - 97;
      num_alphabet[i][d] += 1;
    }
  }
  for (j = 0; j < 26; j++) {
    for (i = 0; i < n; i++) {
      if (least_alphabet[j] > num_alphabet[i][j]) {
	least_alphabet[j] = num_alphabet[i][j];
      }
    }
  }
  //for (i = 0; i < 26; i++) {
  //  printf("%d ", least_alphabet[i]);
  //}
  char ans[55];
  int p = 0;
  for (i = 0; i < 26; i++) {
    for (j = 0; j < least_alphabet[i]; j++) {
      ans[p+j] = (char)(97+i);
    }
    p += least_alphabet[i];
  }
  for (i = 0; i < p; i++) {
    printf("%c", ans[i]);
  }
  return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:15:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &n);
                  ^
./Main.cpp:17:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%s", S[i]);
                      ^

Judge Result