Submission #874887

#	Time	Username	Problem	Language	Result	Execution time	Memory
874887		Faisal_Saqib	Popeala (CEOI16_popeala)	C++17	17 / 100	679 ms	262144 KiB

popeala

#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
const int T=2e4+10;
const int N=52;
const int inf=2e9+1;
int points[1];
string results[1];
int pre[T];
int ptr[N];
vector<int> zero[N];
int zeros[T][T];
int dp[T][N];
int main()
{
    int n,t,s;
    cin>>n>>t>>s;
    for(int i=0;i<t;i++)
    {
        cin>>points[0];
        pre[i+1]=pre[i]+points[0];
    }
    for(int i=0;i<n;i++)
    {
        cin>>results[0];
        ptr[i]=0;
        for(int j=0;j<t;j++)
            if(results[0][j]=='0')
                zero[i].push_back(j);
    }
    for(int i=0;i<=t;i++)
        for(int j=0;j<=s;j++)
            dp[i][j]=inf;       
    // dp[i][j] we spilt the first i testcases into j subtask
    dp[0][0]=0;
    // dp[i][j]  ---> dp[i+1..n][j+1]
    for(int l=1;l<=t;l++)
    {
        for(int r=l;r<=t;r++)
        {
            zeros[l][r]=n;
            for(int i=0;i<n;i++)
            {
                while(ptr[i]<zero[i].size() and zero[i][ptr[i]]<(l-1))
                    ptr[i]++;
                if(ptr[i]<zero[i].size() and zero[i][ptr[i]] < r)
                    zeros[l][r]--;
            }
        }   
    }
    for(int i=0;i<t;i++)
    {
        for(int j=0;j<s;j++)
        {
            if(dp[i][j]==inf)
                continue;
            for(int new_i=i+1;new_i<=t;new_i++)
            {
                dp[new_i][j+1]=min(dp[new_i][j+1],dp[i][j]+(pre[new_i]-pre[i])*zeros[i+1][new_i]);
            }
        }
    }
    for(int j=1;j<=s;j++)
        cout<<dp[t][j]<<'\n';
    return 0;
}

Compilation message (stderr)

popeala.cpp: In function 'int main()':
popeala.cpp:45:29: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   45 |                 while(ptr[i]<zero[i].size() and zero[i][ptr[i]]<(l-1))
      |                       ~~~~~~^~~~~~~~~~~~~~~
popeala.cpp:47:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   47 |                 if(ptr[i]<zero[i].size() and zero[i][ptr[i]] < r)
      |                    ~~~~~~^~~~~~~~~~~~~~~

• Subtask 1: 8 / 8
• Subtask 2: 9 / 9
• Subtask 3: 0 / 9
• Subtask 4: 0 / 74