Water Solution不断收到错误消息“没找到12 \ n”

Question

#include <cs50.h>
#include <stdio.h>

int main(void) {

   printf("How many minutes do you shower for?\n");
   int minutes = get_int();
   int bottles = minutes * (192/16);
   printf("Minutes: %i\n",minutes);
   printf("Bottles: %i\n",bottles);
   printf("%i minute equals %i bottles.\n", minutes, bottles);

do {
   minutes = get_int();
}
while (minutes < 0);
}

这可能是一个简单的问题，但我现在非常困难，并希望得到帮助！

当我使用check50检查代码时，此消息不断弹出：

:) water.c exists.
:) water.c compiles.
:) 1 minute equals 12 bottles.
:) 2 minute equals 24 bottles.
:( 5 minute equals 60 bottles.
    timed out while waiting for program to exit
:( 10 minute equals 120 bottles.
    timed out while waiting for program to exit
:) rejects "foo" minutes
:) rejects "" minutes
:) rejects "123abc" minutes