题解 - 南师大算法竞赛域

端木俁 (房佳坤) LV 10 @ 2021-02-12 13:27:17

#include <iostream>
using namespace std;
int main()//水题
{
    int y,m,leap;cin>>y>>m;
    if(y%4==0&&y%100!=0||y%400==0)
        leap=1;
    else
        leap=0;
    int a[12]={31,28+leap,31,30,31,30,31,31,30,31,30,31};
    cout<<a[m-1];
    return 0;
}

0
武子涵@石湖中学 (武子涵) LV 10 @ 2021-01-03 17:26:53

#include <iostream>
using namespace std;
/*
if(a<b)
;
else
;
*/
int main()
{
int year,month, leap, day;
cin>>year>>month;
int r4=year%4;
int r100=year%100;
int r400=year%400;
if(r4==0)
if(r100==0)
if(r400==0)
leap=1; // 1600 2000
else
leap=0; // 1900 2100
else
leap=1; // 1988 2020
else
leap=0; // 2021 2022 2023

// 关系表达式 == > >= < <= !=
// 逻辑表达式 ||或者 &&并且 !取反
if(month==1 || month==3 || month==5 || month==7 || month==8 || month==10 || month==12)
day=31;
else
if(month==2)
day=28+leap;
else
day=30;
cout<<day<<endl;
return 0;
}
/*
*/
-1
姜浩宇@江陵实验初级中学(initial fish) (老红糖了) LV 7 @ 2021-01-25 16:02:05

#include <iostream>
using namespace std;
int main()
{
int y,m,d,a;
cin>>y;
cin>>m;

if(y%4==0&&y%100!=0||y%400==0)
a=1;
else
a=0;

if(m==1||m==3||m==5||m==7||m==8||m==10||m==12)
d=31;
else
{
if(m==2)
d=28+a;
else
d=30;
}
cout<<d<<endl;
return 0;
}
-2
张博雄@笠泽实验初中 (张博雄) LV 4 @ 2021-01-17 10:57:57

#include <iostream>
using namespace std;
int main()
{
int year,month, leap, day;
cin>>year>>month;
int r4=year%4;
int r100=year%100;
int r400=year%400;
if(r400==0||(r4==0&&r100!=0) )
leap=1;
else
leap=0;
if(month==1 || month==3 || month==5 || month==7 || month==8 || month==10 || month==12)
day=31;
else
if(month==2)
day=28+leap;
else
day=30;
cout<<day<<endl;
return 0;
}
-3
周其昆@吴江区实验初中 (万无一失) LV 8 @ 2021-01-17 13:45:31

#include <iostream>
using namespace std;

int main()
{
int year,month, leap, day;
cin>>year>>month;
int r4=year%4;
int r100=year%100;
int r400=year%400;
if(r4==0)
if(r100==0)
if(r400==0)
leap=1;

else
leap=0;

else
leap=1;
else
leap=0;

if(month==1 || month==3 || month==5 || month==7 || month==8 || month==10 || month==12)
day=31;
else
if(month==2)
day=28+leap;
else
day=30;
cout<<day<<endl;
return 0;
}