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Submission #498913

# Submission time Handle Problem Language Result Execution time Memory
498913 2021-12-26T15:58:30 Z Kipras Swimming competition (LMIO18_plaukimo_varzybos) C++14
0 / 100
 1 ms 204 KB 
#include <bits/stdc++.h>

typedef long long ll;
using namespace std;

const int maxN = 1e6+10;
const int inf = 2147000000;

int n, mini, maxi;
int a[maxN];

bool test(int v){
    int i=0, j=0;
    bool pos=true;
    while(j<n&&pos){
        if(i-j==maxi){i=j;/*cout<<i<<" "<<j<<" "<<a[j]-a[i]<<endl;*/}
        if(a[j]-a[i]>v){
            if(j-i<mini)pos=false;
            else {i=j;/*cout<<i<<" "<<j<<" "<<a[j]-a[i]<<endl;*/}
        }else j++;
    }
    if(n-i<mini)pos=false;
    return pos;
}

int solve(){

    int ans=inf;

    int l = 0, h = a[n-1]-a[0];

    while(l<h){
        int mid = l+((h-l)/2);
        if(test(mid))h=mid;
        else l=mid+1;
    }

    return l;

}

int main()
{

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

    cin>>n>>mini>>maxi;
    for(int i = 0; i < n; i++)cin>>a[i];
    sort(a, a+n);
    //cout<<test(3);
    cout<<solve();

    return 0;
}

Compilation message

plaukimo_varzybos.cpp: In function 'int solve()':
plaukimo_varzybos.cpp:28:9: warning: unused variable 'ans' [-Wunused-variable]
   28 |     int ans=inf;
      |         ^~~

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 30.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 40.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -