C语言将24小时制转换为12小时制的方法

/** 24小时制转换为12小时制*/#include <stdio.h>int main(){  int n, m;  printf("Enter a 24-hour time:");  scanf_s("%d:%d",&n,&m);  if (n < 0)  {    printf("Error1!/n");    system("PAUSE");    return 1;  }  else if (n < 12)  {    printf("Equivalent 12-hour time: %2d:%2d AM/n", n, m);  }  else if ((n >= 12) && (n < 24))  {    n -= 12;    printf("Equivalent 12-hour time: %2d:%2d PM/n", n,m);  }    else  {    printf("Error2!/n");    system("PAUSE");    return 2;  }  system("PAUSE");  return 0;}