oj.uz

Submission #426630

# Submission time Handle Problem Language Result Execution time Memory
426630 2021-06-14T08:15:01 Z 장태환(#7571) Bodyguard (JOI21_bodyguard) C++17
7 / 100
 25000 ms 871448 KB 
#include <iostream>
#include <algorithm>
#include <vector>
#include <string.h>
#define int long long
using namespace std;
int N,Q;
int T[2900],A[2900],B[2900],C[2900];
int P[2900],X[2900];
int dp[6400][6400];
int verc[6400][6400];
int horc[6400][6400];
vector<int>pl;
vector<int>ml;
signed  main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cin >> N>>Q;
    int i;
    for(i=0;i<N;i++)
    {
        cin >> T[i]>>A[i]>>B[i]>>C[i];
        if(A[i]>B[i])
        {
            ml.push_back(T[i]-A[i]);
            pl.push_back(T[i]+A[i]);
            ml.push_back(T[i]+A[i]-2*B[i]);
        }
        else
        {
            ml.push_back(T[i]-A[i]);
            pl.push_back(T[i]+A[i]);
            pl.push_back(T[i]+B[i]*2-A[i]);
        }
    }
    for(i=0;i<Q;i++)
    {
        cin >>P[i]>>X[i];
        ml.push_back(P[i]-X[i]);
        pl.push_back(P[i]+X[i]);
    }
    sort(ml.begin(),ml.end());
    sort(pl.begin(),pl.end());
    ml.erase(unique(ml.begin(),ml.end()),ml.end());
    pl.erase(unique(pl.begin(),pl.end()),pl.end());
    for(i=0;i<N;i++)
    {
        if(A[i]>B[i])
        {
            int s=lower_bound(ml.begin(),ml.end(),T[i]-A[i])-ml.begin();
            int c=lower_bound(pl.begin(),pl.end(),T[i]+A[i])-pl.begin();
            int e=lower_bound(ml.begin(),ml.end(),T[i]+A[i]-2*B[i])-ml.begin();
            int j;
            for(j=s;j<e;j++)
            {
                verc[j+1][c]+=C[i]*(ml[j+1]-ml[j])/2;
            }
        }
        else
        {
            int c=lower_bound(ml.begin(),ml.end(),T[i]-A[i])-ml.begin();
            int s=lower_bound(pl.begin(),pl.end(),T[i]+A[i])-pl.begin();
            int e=lower_bound(pl.begin(),pl.end(),T[i]-A[i]+2*B[i])-pl.begin();
            int j;
            for(j=s;j<e;j++)
            {
                horc[c][j+1]+=C[i]*(pl[j+1]-pl[j])/2;
            }
        }
    }

    for(i=0;i<Q;i++)
    {
         memset(dp,-60,sizeof(dp));
        int s=lower_bound(ml.begin(),ml.end(),P[i]-X[i])-ml.begin();
        int e=lower_bound(pl.begin(),pl.end(),P[i]+X[i])-pl.begin();
        dp[s][e]=0;
        for(int i=0;i<ml.size();i++)
        {
        int j;
        for(j=0;j<pl.size();j++)
        {
            if(i)
            {
                dp[i][j]=max(dp[i][j],dp[i-1][j]+verc[i][j]);
            }
            if(j)
            {
                dp[i][j]=max(dp[i][j],dp[i][j-1]+horc[i][j]);
            }
        }
        }
        cout <<dp[ml.size()-1][pl.size()-1]<<'\n';
    }

}

Compilation message

bodyguard.cpp: In function 'int main()':
bodyguard.cpp:79:22: 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]
   79 |         for(int i=0;i<ml.size();i++)
      |                     ~^~~~~~~~~~
bodyguard.cpp:82:18: 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]
   82 |         for(j=0;j<pl.size();j++)
      |                 ~^~~~~~~~~~

Subtask #1
0 / 6.0

# Verdict Execution time Memory Grader output
1 Execution timed out 25110 ms 509860 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 418 ms 470372 KB Output is correct
2 Correct 408 ms 469588 KB Output is correct
3 Correct 424 ms 467104 KB Output is correct
4 Correct 189 ms 344148 KB Output is correct
5 Correct 421 ms 403316 KB Output is correct
6 Correct 360 ms 376728 KB Output is correct
7 Correct 449 ms 402964 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 418 ms 470372 KB Output is correct
2 Correct 408 ms 469588 KB Output is correct
3 Correct 424 ms 467104 KB Output is correct
4 Correct 189 ms 344148 KB Output is correct
5 Correct 421 ms 403316 KB Output is correct
6 Correct 360 ms 376728 KB Output is correct
7 Correct 449 ms 402964 KB Output is correct
8 Runtime error 970 ms 871448 KB Execution killed with signal 11
9 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 418 ms 470372 KB Output is correct
2 Correct 408 ms 469588 KB Output is correct
3 Correct 424 ms 467104 KB Output is correct
4 Correct 189 ms 344148 KB Output is correct
5 Correct 421 ms 403316 KB Output is correct
6 Correct 360 ms 376728 KB Output is correct
7 Correct 449 ms 402964 KB Output is correct
8 Runtime error 970 ms 871448 KB Execution killed with signal 11
9 Halted 0 ms 0 KB -

Subtask #5
0 / 52.0

# Verdict Execution time Memory Grader output
1 Execution timed out 25110 ms 509860 KB Time limit exceeded
2 Halted 0 ms 0 KB -