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Submission #883545

# Submission time Handle Problem Language Result Execution time Memory
883545 2023-12-05T11:55:53 Z SalihSahin Palembang Bridges (APIO15_bridge) C++14
0 / 100
 1 ms 600 KB 
#include<bits/stdc++.h>
#define pb push_back
#define mp make_pair 
using namespace std;

typedef long long ll;

const int inf = 1e9 * 2;
const int mod = 1e9 + 7;
const int N = 3e4 + 5;


ll dis(pair<ll, ll> i, ll p){
    if(i.first <= p && i.second >= p) return 0;
    else if(i.first > p) return i.first - p;
    else return p - i.second;
}
vector<pair<int, int> > a;
ll check(int m){
    ll val = 0;
    for(auto itr: a){
        val += dis(itr, m) * 2;
    }

    return val;
}

int main(){
    ios_base::sync_with_stdio(false), cin.tie();
    int k, n;
    cin>>k>>n;
    ll ans = 0;
    char h, o;
    int hx, ox;

    for(int i = 0; i < n; i++){
        cin>>h>>hx>>o>>ox;
        if(h != o){
            a.pb(mp(hx, ox));
        }
        ans += abs(hx - ox);
    }
    ans += a.size();

    if(!a.size()){
        cout<<ans<<endl;
    }
    else if(k == 1){
        int l = 0, r = mod - 7;
        while(l < r){
            int m = (l + r)/2;

            ll x = check(m), y = check(m+1);

            if(x <= y) r = m;
            else l = m + 1;
        }

        ans += check(l);
        cout<<ans<<endl;
    }
    else{
        cout<<0<<endl;
    }
    return 0;
}

Subtask #1
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Incorrect 1 ms 348 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #2
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Incorrect 0 ms 348 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 600 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Incorrect 0 ms 348 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #4
0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Incorrect 0 ms 348 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #5
0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Incorrect 0 ms 348 KB Output isn't correct
4 Halted 0 ms 0 KB -