제출 #1110298

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1110298		KasymK	Segments (IZhO18_segments)	C++17	7 / 100	5077 ms	1480 KiB

segments

#include "bits/stdc++.h"
using namespace std;
#define ff first
#define ss second
#define all(v) v.begin(), v.end()
#define ll long long
#define pb push_back
#define pii pair<int, int>
#define pli pair<ll, int>
#define pll pair<ll, ll>
#define tr(i, c) for(auto i = c.begin(); i != c.end(); ++i)
#define wr puts("----------------")
template<class T>bool umin(T& a,T b){if(a>b){a=b;return 1;}return 0;}
template<class T>bool umax(T& a,T b){if(a<b){a=b;return 1;}return 0;}

int f(int a, int b, int c, int d){
	if(a>c)
		swap(a,c), swap(b,d);
	if(b<c)
		return 0;
	if(b<=d)
		return b-c+1;
	return d-c+1;
}

const int N = 2e5+5;
bool is[N];

int main(){
	// freopen("file.txt", "r", stdin);
	int q, t, answer = 0;
	scanf("%d%d", &q, &t);
	vector<pii> S;
	while(q--){
		int op;
		scanf("%d", &op);
		if(op==1){
			int a, b;
			scanf("%d%d", &a, &b);
			int l = a^(t*answer), r = b^(t*answer);
			if(l>r)
				swap(l, r);
			S.pb({l, r});
		}
		else if(op==2){
			int need;
			scanf("%d", &need);
			is[--need] = 1;
		}
		else{
			int a, b, k;
			scanf("%d%d%d", &a, &b, &k);
			int l = a^(t*answer), r = b^(t*answer);
			if(l>r)
				swap(l, r);
			answer = 0;
			for(int i = 0; i < (int)S.size(); ++i){
				if(is[i])
					continue;
				answer += (f(l, r, S[i].ff, S[i].ss)) >= k;
			}
			printf("%d\n", answer);
		}
	}
	return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

segments.cpp: In function 'int main()':
segments.cpp:32:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   32 |  scanf("%d%d", &q, &t);
      |  ~~~~~^~~~~~~~~~~~~~~~
segments.cpp:36:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   36 |   scanf("%d", &op);
      |   ~~~~~^~~~~~~~~~~
segments.cpp:39:9: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   39 |    scanf("%d%d", &a, &b);
      |    ~~~~~^~~~~~~~~~~~~~~~
segments.cpp:47:9: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   47 |    scanf("%d", &need);
      |    ~~~~~^~~~~~~~~~~~~
segments.cpp:52:9: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   52 |    scanf("%d%d%d", &a, &b, &k);
      |    ~~~~~^~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 7 / 7
• Subtask 2: 0 / 15
• Subtask 3: 0 / 16
• Subtask 4: 0 / 17
• Subtask 5: 0 / 20
• Subtask 6: 0 / 25