Submission

PPPPPPPPPP

Score: 100

User: tankunkid

Problemset: ตัวอักษรตัวแรกในคำ

Language: c

Time: 0.002 second

Submitted On: 2024-10-16 20:46:45

#include <stdio.h>

char str[10005];
int abc[26];

int main() {
    scanf("%s", str);
    int max, ans;
    max = 91;
    for (int i = 0; str[i] != '\0'; i++) abc[str[i]-'A']++;
    int idx = 0;
    for (int i = 0; str[i] != '\0'; i++) {
        if (str[idx] < max && abc[str[idx]-'A'] == 1) {
            max = str[idx];
        }
        idx++;
    }
    printf("%c", max);
}