输入一个日期和时间，输出下一秒的日期和时间

 1 #include <stdlib.h>
 2 #include <stdio.h>
 3 #include <string>
 4 #include <string.h>
 5 #include <iostream>
 6 #include <vector>
 7 #include <stack>
 8 using namespace std;
 9 #define debug(x) cout << #x << " at line " << __LINE__ << " is: " << x << endl
10 
11 int isleapyear(int y);
12 void ns(int y,int m,int d,int h,int mi,int s);
13 int main(void) {
14     freopen("../tmp.txt","r",stdin);
15     int y,m,d;
16     int h,mi,s;
17     while(scanf("%d%d%d%d%d%d", &y,&m,&d,&h,&mi,&s)!=EOF){
18         ns(y,m,d,h,mi,s);
19     }
20     return 0;
21 }
22 int isleapyear(int y){
23     if(y%4==0&&y%100!=0 || y%400==0)
24         return 1;
25     return 0;
26 }
27 
28 void ns(int y,int m,int d,int h,int mi,int s){
29     int mth[13]={0,31,28,31,30,31, 30,31,31,30,31, 30,31};
30     if(isleapyear(y)){
31         mth[2] += 1;
32     }
33     if(m<1 || m > 12 || d>mth[m] || d<1 || h<0 || h>23 || mi<0 || mi >59 || s<0 || s>59){
34         printf("the data(%d-%d-%d %d:%d:%d) is illegal!\n",y,m,d,h,mi,s);
35         return;
36     }
37     if(s==59){
38         s=0;
39         if(mi==59){
40             mi=0;
41             if(h==23){
42                 h=0;
43                 if(d==mth[m]){
44                     d=1;
45                     if(m==12){
46                         m=1;
47                         y+=1;
48                     }else {
49                         m+=1;
50                     }
51                 }else {
52                     d+=1;
53                 }
54             }else {
55                 h+=1;
56             }
57         }else {
58             mi+=1;
59         }
60 
61     }else {//s < 59
62         s+=1;
63     }
64 
65     printf("%d-%d-%d %d:%d:%d\n",y,m,d,h,mi,s);
66 }