Submission #2211847

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Source Code Expand

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define FOR(i, a, b) for(i = a; i < b; ++i)
#define REP(i, n) FOR(i, 0, n)
#define comp(a, b) comp(const void *a, const void *b)
#define MOD  1000000007

typedef unsigned int uint;
typedef unsigned long ulong;
typedef unsigned long long ull;

void TF_print(char boolean, char T[], char F[]){
    if(boolean){
        printf("%s\n", T);
    }else{
        printf("%s\n", F);
    }
}

void count_char(uint alpha[26], char S[50], uint len){
    int i;
    REP(i, 26){
        alpha[i] = 0;
    }
    REP(i, len){
        alpha[S[i] - 'a']++;
    }
}

int main(){
    uint alpha[26], minAlpha[26];
    char S[50];
    uint n, i, j;

    REP(i, 26){
        minAlpha[i] = 51;

    }
    scanf("%d", &n);
    REP(i, n){
        scanf("%s", S);
        uint len = strlen(S);
        count_char(alpha, S, len);
        REP(j, 26){
            if(minAlpha[j] > alpha[j]){
                minAlpha[j] = alpha[j];
            }
        }
    }
    REP(i, 26){
        REP(j, minAlpha[i]){
            printf("%c", i + 'a');
        }
    }
    printf("\n");
    return 0;
}

Submission Info

Judge Result