洛谷P1200 [USACO1.1]你的飞碟在这儿Your Ride Is Here经典解法

#include<stdio.h>
#include<string.h>
char a[7], b[7];
int main(void) {
	int i, x, y;
	scanf("%s%s", a, b);
	for (i = 1, x = a[0]-64; i < strlen(a); i++)
		x = (x * (a[i]-64)) % 47;
	for (i = 1, y = b[0]-64; i < strlen(b); i++)
		y = (y * (b[i]-64)) % 47;
	if (x == y)
		printf("GO");
	else
		printf("STAY");
	return(0);
}