oj.uz

Submission #997411

# Submission time Handle Problem Language Result Execution time Memory
997411 2024-06-12T09:21:14 Z doducanh Palembang Bridges (APIO15_bridge) C++14
22 / 100
 125 ms 11364 KB 
#include<bits/stdc++.h>
using namespace std;
#define ii pair<int,int>
#define fi first
#define se second
int k,n;
long long sumL=0,sumU=0;
vector<ii>v;
multiset<int>low;
multiset<int>up;
long long pref[100005];
bool cmp(ii a,ii b)
{
    return (a.fi+a.se)<(b.fi+b.se);
}
void capnhat(int x)
{
    int val;
    if(low.size()==0)val=1000000007;
    else val=*low.rbegin();
    if(x<=val){
        low.insert(x);
        sumL+=x;
    }
    else{
        up.insert(x);
        sumU+=x;
    }
    if(low.size()>up.size()+1){
        up.insert(*low.rbegin());
        sumU+=(*low.rbegin());
        sumL-=(*low.rbegin());
        low.erase(low.find(*low.rbegin()));
    }
    else if(up.size()>low.size()){
        low.insert(*up.begin());
        sumL+=(*up.begin());
        sumU-=(*up.begin());
        up.erase(up.begin());
    }
}
main()
{
    cin>>k>>n;
    long long delt=0;
    for(int i=1;i<=n;i++){
        char a,b;
        int x,y;
        cin>>a>>x>>b>>y;
        if(a==b){
            delt+=abs(x-y);
        }
        else{
            v.push_back({x,y});
        }
    }
    sort(v.begin(),v.end(),cmp);
    long long ans=LLONG_MAX;
    for(int i=0;i<v.size();i++){
        capnhat(v[i].fi);
        capnhat(v[i].se);
        pref[i]=sumU-sumL;

    }
    ans=min(ans,sumU-sumL+(long long)v.size());
    if(k==2){
        sumL=0,sumU=0;
        for(int x:low)low.erase(x);
        for(int x:up)up.erase(x);
        for(int i=v.size();i>0;i--){
            capnhat(v[i].fi);
            capnhat(v[i].se);
            ans=min(ans,pref[i-1]+sumU-sumL+(long long)v.size());
        }
    }

    cout<<ans+delt;
    return 0;
}

Compilation message

bridge.cpp:42:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   42 | main()
      | ^~~~
bridge.cpp: In function 'int main()':
bridge.cpp:59:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   59 |     for(int i=0;i<v.size();i++){
      |                 ~^~~~~~~~~

Subtask #1
8.0 / 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 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 344 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 392 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 70 ms 11284 KB Output is correct
13 Correct 125 ms 11224 KB Output is correct
14 Correct 105 ms 10176 KB Output is correct
15 Correct 70 ms 6856 KB Output is correct
16 Correct 78 ms 11364 KB Output is correct
17 Correct 105 ms 11240 KB Output is correct
18 Correct 80 ms 11208 KB Output is correct
19 Correct 107 ms 11200 KB Output is correct
20 Correct 93 ms 11192 KB Output is correct
21 Correct 99 ms 11208 KB Output is correct

Subtask #3
0 / 9.0

# 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 Runtime error 0 ms 604 KB Execution killed with signal 11
4 Halted 0 ms 0 KB -

Subtask #4
0 / 32.0

# 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 Runtime error 0 ms 348 KB Execution killed with signal 11
4 Halted 0 ms 0 KB -

Subtask #5
0 / 37.0

# 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 Runtime error 0 ms 348 KB Execution killed with signal 11
4 Halted 0 ms 0 KB -