#include <stdio.h> int main() { int b, c, d; float a,price; while (scanf("%f %d %d %d", &a, &b, &c, &d) != EOF) { // 注意 while 处理多个 case // 64 位输出请用 printf("%lld") to if (b == 11 && c == 11) { price = a * 0.7 - d*50; } else { if (b == 12 && c ...