제출 #882610

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
882610		vjudge1	Palembang Bridges (APIO15_bridge)	C++11	0 / 100	1 ms	348 KiB

bridge

#include<bits/stdc++.h>
#define all(aa) aa.begin(), aa.end()
#define endl ("\n")
#define pb push_back
typedef long long ll;
const int maxn = 1e5 + 5;
using namespace std;

int n, k;
ll rem, cur, ans = LONG_LONG_MAX;
vector<pair<ll, ll>> v;
vector<ll> u;

ll mindist(pair<ll, ll> p, ll l, ll r){
	if( (p.first <= l && l <= p.second ) || (p.first <= r && r <= p.second) )
		return 0;
	ll ret = min(abs(l - p.first), abs(l - p.second));
	ret = min(ret, abs(r - p.first));
	ret = min(ret, abs(r - p.second));
	return 2*ret;
}

int main(){
	cin >> k >> n;
	for(int i = 0; i < n; i++){
		char c1, c2;
		int a, b;
		cin >> c1 >> a >> c2 >> b;
		if(a < b) swap(a, b);
		rem+= a - b;
		if(c1 != c2){
			rem++;
			v.pb({b, a});
			u.pb(a), u.pb(b);
		}
	}

	for(int l = 0; l < u.size(); l++){
		for(int r = l; r < u.size(); r++){
			cur = 0;
			for(auto p : v){
				cur += mindist(p, l, r);
			}
			ans = min(ans, cur);
		}
	}
	
	cout << ans + rem << endl;
	
}

컴파일 시 표준 에러 (stderr) 메시지

bridge.cpp: In function 'int main()':
bridge.cpp:38:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |  for(int l = 0; l < u.size(); l++){
      |                 ~~^~~~~~~~~~
bridge.cpp:39:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   39 |   for(int r = l; r < u.size(); r++){
      |                  ~~^~~~~~~~~~

• Subtask 1: 0 / 8
• Subtask 2: 0 / 14
• Subtask 3: 0 / 9
• Subtask 4: 0 / 32
• Subtask 5: 0 / 37