题解 | #竞选社长#

#include <stdio.h>
#include<string.h>
int main() {
    //一行，字符序列，包含A或B，输入以字符0结束。
    char ch[20];
    int count = 0, cint = 0,i = 0;
    gets(ch);
    for ( i = 0; i < strlen(ch); i++) {
        if (ch[i] == 'A')
            count++;
        else if (ch[i] == 'B')
            cint++;
    }
    if (count>cint)
        printf("A\n");
    else if (count == cint)
        printf("E\n");
    else
        printf("B\n");

}