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Submission #724037

# Submission time Handle Problem Language Result Execution time Memory
724037 2023-04-14T15:51:50 Z groshi Swimming competition (LMIO18_plaukimo_varzybos) C++17
100 / 100
 419 ms 22836 KB 
#include<bits/stdc++.h>
#define int long long
using namespace std;
vector<int> Q;
int n,a,b;
int mam[1200000];
bool git(int x)
{
    for(int i=0;i<=n;i++)
        mam[i]=0;
    int suma=1;
    mam[0]=1;
    int l=0,r=0;
    for(int i=1;i<=n;i++)
    {
        while(l<Q.size() && Q[l]+x<Q[i-1])
        {
            suma-=mam[l];
            l++;
        }
        while(r<Q.size() && Q[r]+x<Q[i-1])
        {
            suma+=mam[r+1];
            r++;
        }
        while(l+b<i)
        {
            suma-=mam[l];
            l++;
        }
        while(r+a<i)
        {
            suma+=mam[r+1];
            r++;
        }
        if(suma>0 && i-l>=a)
            mam[i]=1;
    }
    return mam[n];
}
int32_t main()
{
    cin.tie(0);
    cout.tie(0);
    ios_base::sync_with_stdio(0);
    int x;
    cin>>n>>a>>b;
    for(int i=1;i<=n;i++)
    {
        cin>>x;
        Q.push_back(x);
    }
    sort(Q.begin(),Q.end());
    int pocz=0,kon=1e6,sre,ostd=1e9;
    while(pocz<kon)
    {
        sre=(pocz+kon)/2;
        if(git(sre))
        {
            ostd=sre;
            kon=sre;
        }
        else pocz=sre+1;
    }
    cout<<ostd;
    return 0;
}

Compilation message

plaukimo_varzybos.cpp: In function 'bool git(long long int)':
plaukimo_varzybos.cpp:16:16: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   16 |         while(l<Q.size() && Q[l]+x<Q[i-1])
      |               ~^~~~~~~~~
plaukimo_varzybos.cpp:21:16: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   21 |         while(r<Q.size() && Q[r]+x<Q[i-1])
      |               ~^~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 17 ms 2008 KB Output is correct
3 Correct 2 ms 596 KB Output is correct
4 Correct 246 ms 16092 KB Output is correct
5 Correct 248 ms 22836 KB Output is correct
6 Correct 23 ms 2636 KB Output is correct
7 Correct 241 ms 20520 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct

Subtask #3
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 17 ms 2008 KB Output is correct
3 Correct 2 ms 596 KB Output is correct
4 Correct 246 ms 16092 KB Output is correct
5 Correct 248 ms 22836 KB Output is correct
6 Correct 23 ms 2636 KB Output is correct
7 Correct 241 ms 20520 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 8 ms 988 KB Output is correct
22 Correct 8 ms 1364 KB Output is correct
23 Correct 13 ms 1780 KB Output is correct
24 Correct 18 ms 2192 KB Output is correct
25 Correct 112 ms 13388 KB Output is correct
26 Correct 205 ms 18264 KB Output is correct
27 Correct 27 ms 2200 KB Output is correct
28 Correct 17 ms 1868 KB Output is correct
29 Correct 1 ms 324 KB Output is correct
30 Correct 330 ms 22740 KB Output is correct
31 Correct 330 ms 22832 KB Output is correct

Subtask #4
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 17 ms 2008 KB Output is correct
3 Correct 2 ms 596 KB Output is correct
4 Correct 246 ms 16092 KB Output is correct
5 Correct 248 ms 22836 KB Output is correct
6 Correct 23 ms 2636 KB Output is correct
7 Correct 241 ms 20520 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 8 ms 988 KB Output is correct
12 Correct 8 ms 1364 KB Output is correct
13 Correct 13 ms 1780 KB Output is correct
14 Correct 18 ms 2192 KB Output is correct
15 Correct 112 ms 13388 KB Output is correct
16 Correct 205 ms 18264 KB Output is correct
17 Correct 27 ms 2200 KB Output is correct
18 Correct 17 ms 1868 KB Output is correct
19 Correct 1 ms 324 KB Output is correct
20 Correct 330 ms 22740 KB Output is correct
21 Correct 330 ms 22832 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 0 ms 212 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 0 ms 212 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 10 ms 1568 KB Output is correct
33 Correct 130 ms 12424 KB Output is correct
34 Correct 116 ms 12632 KB Output is correct
35 Correct 419 ms 22828 KB Output is correct
36 Correct 419 ms 22836 KB Output is correct
37 Correct 376 ms 22832 KB Output is correct
38 Correct 159 ms 15048 KB Output is correct