题解 | #日期累加#

bug:printf最后要输出换行

#include <iostream>
#include<cstring>
#include<algorithm> 
using namespace std; 

void NextDay(int &year,int &month,int &day){
	int dayOfMonth[] = {0,31,28,31,30,31,30,31,31,30,31,30,31};
	bool isLeap;
	isLeap = (year % 400 == 0) || (year % 4 ==0 && year % 100 != 0);
	if(isLeap){
		dayOfMonth[2] = 29;
	}
	
	day++;
	if(day > dayOfMonth[month]){
		day = 1;
		month++;
	}
	
	if(month > 12){
		month = 1;
		year++;
	}
}

int main() {

    int n;
    int y,m,d,day;
    
    cin>>n;
    
    while(n--){
    	cin>>y>>m>>d>>day;
    	while(day--){
    		NextDay(y,m,d);
		}
		printf("%04d-%02d-%02d\n",y,m,d);
	}
    
    return 0;
}