Submission

Score: 100

User: lingusso

Problemset: ตัวอักษรตัวแรกในคำ

Language: c

Time: 0.003 second

Submitted On: 2025-10-13 18:53:56

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

int main(){
	int c;
    char inp[20];
    scanf("%s",&inp);
    int len =strlen(inp);
    for(int i='A';i<='Z';i++){
    	c = 0;
    	for(int j=0;j<len;j++){
  	  		if(inp[j] == i){
  	  			c++;
			}
		}
		if(c==1){
			printf("%c",i);
			return 0;
		}
	}
    return 0;
}