Submission #971754

#	Time	Username	Problem	Language	Result	Execution time	Memory
971754		Halym2007	Palembang Bridges (APIO15_bridge)	C++17	Compilation error	0 ms	0 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;

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

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){
    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(int i = 0; i < v.sz; i++){
    mn = min(mn,(i+1)*v[i] - p[i+1] + p[v.sz] - p[i+1] - (v.sz-i-1)*v[i]);
    }
    cout << mn + sum;
}

Compilation message (stderr)

bridge.cpp: In function 'int main()':
bridge.cpp:24:5: error: 'v' was not declared in this scope
   24 |     v.pb(b[i].ss);
      |     ^
bridge.cpp:29:10: error: 'v' was not declared in this scope
   29 |     sort(v.begin(), v.end());
      |          ^
bridge.cpp:31:5: error: 'p' was not declared in this scope
   31 |     p[i+1] = v[i] + p[i];
      |     ^
bridge.cpp:34:30: error: 'p' was not declared in this scope
   34 |     mn = min(mn,(i+1)*v[i] - p[i+1] + p[v.sz] - p[i+1] - (v.sz-i-1)*v[i]);
      |                              ^