제출 #145549

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
145549	2019-08-20 11:30:14	surface03	공주님의 정원 (KOI11_flower)	C++14	18 / 18	45 ms	2080 KiB

flower

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#include<bits/stdc++.h>
using namespace std;
int ans,np,flag,n;
struct data{
    int fr,re;
    bool operator<(const data&r)const{
        return fr<r.fr;
    }
}p[100010];
int main(){
    scanf("%d",&n);
    for(int i=0,n1,n2,n3,n4;i<n;i++){
        scanf("%d%d%d%d",&n1,&n2,&n3,&n4);
        p[i].fr=40*n1+n2;
        p[i].re=40*n3+n4;
    }
    sort(p,p+n);
    flag=40*3+1;
    np=-1;
    for(int i=0;i<n;i++){
        if(flag>=40*12+1)break;
        if(p[i].fr>flag){
            if(np==-1){
                printf("0");
                return 0;
            }
            flag=p[np].re;
            np=-1;
            ans++;
        }
 
 
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컴파일 시 표준 에러 (stderr) 메시지

flower.cpp: In function 'int main()':
flower.cpp:11:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d",&n);
     ~~~~~^~~~~~~~~
flower.cpp:13:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d%d%d%d",&n1,&n2,&n3,&n4);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 2 / 2
• Subtask 2: 7 / 7
• Subtask 3: 9 / 9