Submission

Score: 100

User: theem1502

Problemset: ตัวอักษรตัวแรกในคำ

Language: cpp

Time: 0.002 second

Submitted On: 2025-09-08 15:37:36

#include <stdio.h>

int main() {
    char thechar[100];
    scanf("%s", thechar);
    int length = 0;
    while (thechar[length] != '\0') {
        length++;
    }
    int mapped[100] = {0};
    for (int i = 0; i < length; i++) 
{
    mapped[thechar[i] - 'A'] ++;
}

for (int i = 0; i < 26; i++) {
    char currentchar = 'A' + i;
    if (mapped[currentchar - 'A'] == 1) {
        printf("%c", currentchar);
        return 0;
    }

}
}