Submission #971762

#	Time	Username	Problem	Language	Result	Execution time	Memory
971762		Halym2007	Palembang Bridges (APIO15_bridge)	C++17	0 / 100	4 ms	2396 KiB

bridge

#include "bits/stdc++.h"
#define ll long long int
#define pb push_back
#define ff first
#define ss second
#define sz size()

const int N = 2e5 + 1;

using namespace std;

int k, n, vis[N];

ll mn = 1e15, sum, cnt, p[N];

pair <char, int> a[N], b[N];
vector <ll> v;

int main(){
    ios::sync_with_stdio(false); cin.tie(nullptr);
    cin >> k >> n;
    for(int i = 1; i <= n; i++){
    cin >> a[i].ff >> a[i].ss >> b[i].ff >> b[i].ss;
    if(a[i].ff != b[i].ff) {
    	cnt++;
	    v.pb(b[i].ss);
	    v.pb(a[i].ss);
    }
    else sum += abs(a[i].ss-b[i].ss);
    }
    sort(v.begin(), v.end());
    for(int i = 0; i < v.sz; i++){
    	p[i+1] = v[i] + p[i];
    }
    for(ll i = 0; i < v.sz; i++){
    	mn = min(mn, (i + 1) * v[i] - p[i+1] + p[(ll)v.sz] - p[i+1] - ((ll)v.sz - i - 1)*v[i] );
    }
    cout << mn + sum + cnt;
}

Compilation message (stderr)

bridge.cpp: In function 'int main()':
bridge.cpp:32:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   32 |     for(int i = 0; i < v.sz; i++){
      |                      ^
bridge.cpp:35:21: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |     for(ll i = 0; i < v.sz; i++){
      |                     ^

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