Submission #40475

#	Time	Username	Problem	Language	Result	Execution time	Memory
40475		Waschbar	Palembang Bridges (APIO15_bridge)	C++14	0 / 100	3 ms	824 KiB

bridge

#include <bits/stdc++.h>
#define st first
#define nd second
using namespace std;

const long long INF = 1e10;
const int MOD = 1e9+7;
const int MAXN = 30000;

int n, k, ans, cnt;
vector < pair<int,int> > a;

int main() {

    ios_base::sync_with_stdio(false);
    cin.tie(0);

    //freopen("input.txt","r",stdin);
    //freopen("output.txt","w",stdout);

    cin >> k >> n;

    vector < int > v;
    for(int i = 1; i <= n; i++) {
        int x1, x2;
        char c1, c2;
        cin >> c1 >> x1 >> c2 >> x2;
        if(c1 == c2) ans += abs(x2-x1);
        else {
            v.push_back(x1);
            v.push_back(x2);
            cnt++;
        }
    }

    ans += cnt;
    sort(v.begin(),v.end());

    int x = v[(v.size()+1)/2 - 1];

    for(int i = 0; i < v.size(); i++)
        ans += abs(x-v[i]);

    cout << ans;
}

Compilation message (stderr)

bridge.cpp: In function 'int main()':
bridge.cpp:41:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i = 0; i < v.size(); i++)
                      ^

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