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Submission #608782

# Submission time Handle Problem Language Result Execution time Memory
608782 2022-07-27T10:04:30 Z CSQ31 Popeala (CEOI16_popeala) C++17
17 / 100
 2000 ms 596 KB 
#include <bits/stdc++.h>
using namespace std;
const int MAXN = 2e4+1;
#define owo ios_base::sync_with_stdio(0);cin.tie(0);
typedef long long int ll;
int pt[MAXN],n,t,s;
string stu[50];
ll dp1[MAXN],dp2[MAXN],mx[2*MAXN],lazy[2*MAXN];
int last[50];
void tran(){
	for(int i=0;i<n;i++)last[i] = 0;
	for(int i=1;i<=t;i++){
		for(int j=0;j<n;j++){
			if(stu[j][i-1] == '1'){
				for(int k=last[j];k<i;k++)dp1[k]+=pt[i];
				//[last[j],i) gets increased by pt[i]
			}else{
				//reverse the change did
				if(i>1 && stu[j][i-2] == '1'){
					for(int x=last[j]+1;x<i;x++){
						for(int k=last[j];k<x;k++)dp1[k]-=pt[x];
					}
				}
				last[j] = i;
				
			}
		}
		/*
		for(int i=0;i<=t;i++)cout<<dp1[i]<<" ";
		cout<<'\n';
		* */
		for(int x=0;x<i;x++)dp2[i] = min(dp2[i],dp1[x]);
	}
	/*
	cout<<'\n';;
	for(int i=0;i<=t;i++)cout<<dp2[i]<<" ";
	cout<<'\n';
	* */
}
int main(){
	owo
	cin>>n>>t>>s;
	for(int i=1;i<=t;i++)cin>>pt[i];
	for(int i=0;i<n;i++)cin>>stu[i];
	
	vector<int>ans(s+1,0);
	for(int i=0;i<=t;i++)dp1[i] = dp2[i]= 1e15;
	dp1[0] = 0;
	for(int i=1;i<=s;i++){
		tran();
		ans[i] = dp2[t];
		for(int j=0;j<=t;j++){
			swap(dp1[j],dp2[j]);
			dp2[j] = 1e15;
		}
	}
	for(int i=1;i<=s;i++)cout<<ans[i]<<'\n';
	
	
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 74 ms 368 KB Output is correct
2 Correct 81 ms 360 KB Output is correct
3 Correct 77 ms 340 KB Output is correct

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 499 ms 492 KB Output is correct
2 Correct 762 ms 468 KB Output is correct
3 Execution timed out 2075 ms 596 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #4
0 / 74.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 74 ms 368 KB Output is correct
4 Correct 81 ms 360 KB Output is correct
5 Correct 77 ms 340 KB Output is correct
6 Correct 499 ms 492 KB Output is correct
7 Correct 762 ms 468 KB Output is correct
8 Execution timed out 2075 ms 596 KB Time limit exceeded
9 Halted 0 ms 0 KB -