#include<stdio.h>

int main(){

int year;

scanf("%d",&year);

if((year%4==0&&year%100!=0)||(year%4==0&&year%100==0&&year%400==0))

printf("%d是闰年"，year);

else

printf("%d不是闰年",year);

if(year % 4 == 0 && year % 100 != 0 || year % 400 == 0)

    return 1;

return 0;

1. int is_run(int year)
2. {
3. //闰年的条件是符合后面两个条件之一：能被4整除，但不能被100整除；能被400整除
4. if (year % 400 == 0)
5. return 1;
6. if (year % 4 == 0 && year % 100 != 0)
7. {
8. return 1;
9. }
10. return 0;
11. }

1

int is_run(int year) 
{
	//闰年的条件是符合后面两个条件之一：能被4整除，但不能被100整除；能被400整除
	if (year % 400 == 0)
		return 1;
	if (year % 4 == 0 && year % 100 != 0) 
	{
		return 1;
	}
	return 0;
}

int year
if((year%4==0&&year %100！=0)||year % 400)
           printf（“是闰年”）；
else

      printf("不是闰年"）；
 

#include int main() { int year; printf("请输入年份："); scanf("%d",&year); if(year%4==0&&year%100!=0||year%400==0) printf("是闰年\n"); else printf("不是闰年\n"); } 赞(0)

#include <stdio.h> 
int main() { 
    int year;
    printf("请输入年份：");
    scanf("%d",&year);
    if(year%4==0&&year%100!=0||year%400==0)
        printf("是闰年\n");
    else
        printf("不是闰年\n");
}

int main(void)
{
    int year;
    puts("请输入年份");
    scanf("%d", &year);
    if ((year % 4 == 0 && year % 100 != 0) || (year % 400 == 0)) {//注意400
    printf("%d 是闰年\n",year);
    }else{
        printf("%d 不是闰年\n", year);
    }
    
    
    return 0;
}

int isRYear(int year){

     if((year%4==0 && year%100 !=0) || (year%400==0)) {

         return 1;

   }

 return 0;

}

#include<stdio.h>

int main()
{
    int day,month,year,sum;
    printf("Pleas input year,month,day\n");
    scanf("%d%d%d",&year,&month,&day);
    switch(month)
    {
        case 1:sum=0;break;
        case 2:sum=31;break;
        case 3:sum=59;break;
        case 4:sum=90;break;
        case 5:sum=120;break;
        case 6:sum=151;break;
        case 7:sum=181;break;
        case 8:sum=212;break;
        case 9:sum=243;break;
        case 10:sum=273;break;
        case 11:sum=304;break;
        case 12:sum=334;break;
        default:break;
    }
    sum=sum+day;
    if(month>2&&(year%400==0||year%4==0&&year%100!=0))
     ++sum;
    printf("It is the %dth day.",sum);
    return 0;
}

int main(){

    int day,month,year,sum;
    printf_s("请输入年月日：(用逗号分隔)",year,month,day);
    scanf("%d,%d,%d",&year,&month,&day);
        switch(month) {
            case 1:sum = 0;
                break;
            case 2:sum = 31;
                break;
            case 3:sum = 59;
                break;
            case 4:sum = 90;
                break;
            case 5:sum = 120;
                break;
            case 6:sum = 151;
                break;
            case 7:sum = 181;
                break;
            case 8:sum = 212;
                break;
            case 9:sum = 243;
                break;
            case 10:sum = 273;
                break;
            case 11:sum = 304;
                break;
            case 12:sum = 334;
                break;
            default:break;
        }
        sum = sum + day;
        if(month>2&&(year%400==0||year%4==0&&year%100!=0))
            ++sum;
        printf("It is the %dth day.\n", sum);
    system("pause");
    return 0;
}

(year%4==0)&&(year%100!=0)||(year%400)

int main() {
    int year;
    scanf("%d", &year);
    if ((year % 4 == 0 && year % 100 != 0) || (year % 400 == 0)) {
        printf("%d年是闰年", year);
    }
    else
        printf("%d年不是闰年", year);
}

#include int main() { int year; printf("请输入年份："); scanf("%d",&year); if(year%4==0&&year%100!=0||year%400==0) printf("是闰年\n"); else printf("不是闰年\n"); }

int main() {
    int year;
    scanf("%d", &year);
    if ((year % 4 == 0 && year % 100 != 0) || (year % 400 == 0)) {
        printf("%d年是闰年", year);
    }
    else
        printf("%d年不是闰年", year);
}

&&优先于||

#include<stdio.h>
int main()
{
    int year;
    scanf("%d",&year);
    if((year%4==0&&year%100)||year%400==0)
    printf("yes\n");
    else printf("no\n"); 
}

都给我上岸

#include int main(){ int fun(int n); int a=fun(2024); printf("%d",a); } int fun(int n){ if(n%4==0&&n%100!=0||n%400==0) return 1; return 0; }

#include "stdio.h"

int main() {

    int year;

    printf("请输入年份！\n");
    scanf("%d", &year);

    if(((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0)) {

        printf("%d 是闰年~", year);
    } else {
        
        printf("%d 不是闰年！", year);
    }
}

#include <stdio.h>
int main()
{
    int n;
    scanf("%d",&n);
    if(n%400==0||n%4==0&&n%100!=0)
        printf("是闰年");
    else
    {
        printf("不是闰年");
    }
    return 0;
}

if(year%100 == 0 && year % 4 == 0 || year % 400 == 0) printf("is leap year");

#include<stdio.h>

int main(){

int year;

scanf("%d",&year);

if((year%4==0&&year%100!=0)||(year%400==0)) printf("%d 是闰年\n",year);

else printf("%d 不是闰年\n",year);

return 0;

}

重庆下辈子一定去

#include<stdio.h>

int main(){

int year;

scanf("%d",&year);

if((year%4==0&&year%100!=0)||(year%400==0))

printf("%d is瑞年\n",year);

else

printf("%d not is year\n",year);

return 0;}

#include<stdio.h>

int main(){

int year;

scanf("%d",&year);

if((year%4==0&&year%100!=0)||(year%400==0)

printf("%d is瑞年\n",year);

else

printf("%d not is year\n",year);

return 0;}

#include<stdio.h>

int main(){

int year;

scanf("%d",&d);

if((year%4==0&&year%100!=0)||(year%400==0)

printf("%d is瑞年\n",year);

else

printf("%d not is year\n",year);

return 0;}

#include<stdio.h>

int main(){

int year;

scanf("%d",&d);

if((year%4==0&&year%100!=0)||(year%400==0)

printf("%d is瑞年\n",year);

else

printf("%d not is year\n",year);

return 0;}

#include <stdio.h>
int main()
{
    int year=0;
    printf("输入年份: ");
    scanf("%d",&year);
    if(year%4==0&&(year%100)!=0)
    {
        printf("%d是闰年",year);
    }
    else if(year%400==0)
    {
        printf("%d是闰年",year);
    }
    else
    {
        printf("%d不是闰年",year);
    }
    return 0;
} 

#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>

int main() {
    int i;
    printf("请输入一个年份");
    scanf("%d", &i);
    if (i % 4 == 0 && i % 100 != 0 || i % 400 == 0)
        printf("%d年是闰年", i);
    else
        printf("%d年不是闰年",i);

return 0;
}

#include<stdio.h>
int main(){
int year;
scanf("%d",&year);
if((year%4==0&&year%100!=0)||year%400==0){
    printf("%d为闰年\n",year);
}
else{
    printf("%d为平年\n",year);
}
    return 0;
}

#include <stdio.h>
int main() {
    int year;
    scanf_s("%d",&year);
    if(year%100==0){
        if(year%400==0){
            printf_s("%d是闰年",year);
        } else{
            printf_s("%d不是闰年",year);
        }
    } else if(year%4==0){
        printf_s("%d是闰年",year);
    } else{
        printf_s("%d不是闰年",year);
    }
}

#include <stdio.h> 
int main() { 
    int year;
    printf("请输入年份：");
    scanf("%d",&year);
    if(year%4==0&&year%100!=0||year%400==0)
        printf("是闰年\n");
    else
        printf("不是闰年\n");
}

#include<bits/stdc++.h>

using namespace std;

int main(){

int x,y,p,q;

scanf("%d",&a);

if(year<0)

printf("年份输入有误，请重新输入\n");

else{

if((year%4==0 && year%100!=0) || year%400==0)

printf("该年是闰年\n");

else

printf("该年不是闰年\n");;

}

return 0

}

#include <stdio.h>

int main()

{

int year=0;

printf("请输入年份：\n");

scanf("%d",&year);

if(year<0)

printf("年份输入有误，请重新输入\n");

else{

if((year%4==0 && year%100!=0) || year%400==0)

printf("该年是闰年\n");

else

printf("该年不是闰年\n");;

}

return 0;

}