UVa 621 - Secret Research

#include <cstdio>#include <cstring>char A[10002];int main() {    #ifndef ONLINE_JUDGE    freopen("in.txt", "r", stdin);    #endif    int n;    scanf("%d", &n);    while(n--) {        scanf("%s", A);        int len = strlen(A);        if(A[len-1] == '5') printf("-\n");        else if(A[0] == '9') printf("*\n");        else if(A[0] == '1' && len > 1) printf("?\n");        else printf("+\n");    }    return 0;}