제출 #99734

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
99734	2019-03-06 11:13:45	songc	허수아비 (JOI14_scarecrows)	C++14	100 / 100	752 ms	67532 KiB

scarecrows

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#include <bits/stdc++.h>
using namespace std;
typedef pair<int, int> pii;
int N;
long long ans;
pii A[202020];
struct Node{
    vector<pii> V;
    Node *lc=NULL, *rc=NULL;
};
void update(Node *now, int s, int e, pii P){
    if (e < P.second || P.second < s) return;
    if (s == e) {
        now->V.push_back(P);
        return;
    }
    int mid = (s+e)/2;
    if (now->lc == NULL) now->lc = new Node;
    update(now->lc, s, mid, P);
    if (now->rc == NULL) now->rc = new Node;
    update(now->rc, mid+1, e, P);
    while (!now->V.empty() && now->V.back().second < P.second) now->V.pop_back();
    now->V.push_back(P);
}
int query(Node *now, int s, int e, int xlim, int ylim){
 
 
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컴파일 시 표준 에러 (stderr) 메시지

scarecrows.cpp: In function 'int main()':
scarecrows.cpp:45:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &N);
     ~~~~~^~~~~~~~~~
scarecrows.cpp:46:35: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     for (int i=1; i<=N; i++) scanf("%d %d", &A[i].first, &A[i].second);
                              ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 10 / 10
• Subtask 3: 85 / 85