Submission #1110198

#	Time	Username	Problem	Language	Result	Execution time	Memory
1110198		vjudge1	Ski 2 (JOI24_ski2)	C++17	0 / 100	1 ms	512 KiB

Main

#include<bits/stdc++.h>
using namespace std;
int n,k;
pair<int,int>a[500];
vector<int>g;
int lma=0;
int mn;
int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    if(fopen("c.INP","r")){
        freopen("c.INP","r",stdin);
        freopen("c.OUT","w",stdout);
    }
    cin >>n>>k;
    int asw=0;
    for(int i=1;i<=n;i++){
        cin >>a[i].first>>a[i].second;
    }
    sort(a+1,a+n+1);
    int mn=a[1].second;
    int i=2;
    lma=1;
    for(;i<=n;i++){
        if(a[i].first==a[1].first){
            a[i].first++;
            asw+=k;
            if(!lma)asw+=a[1].second;
            else lma--;
            g.push_back(a[i].second);
        }
        else break;
    }
    for(;i<=n;i++){
        if(a[i].first!=a[i-1].first){
            for(auto o:g){
                mn=min(mn,o);
                lma++;
            }
            g.clear();
        }
        if(!lma)asw+=mn;
        else lma--;
        g.push_back(a[i].second);
    }
    cout <<asw;
}

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:13:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 |         freopen("c.INP","r",stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~
Main.cpp:14:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   14 |         freopen("c.OUT","w",stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 5
• Subtask 2: 0 / 12
• Subtask 3: 0 / 9
• Subtask 4: 0 / 33
• Subtask 5: 0 / 27
• Subtask 6: 0 / 14