oj.uz

Submission #63041

# Submission time Handle Problem Language Result Execution time Memory
63041 2018-07-31T12:14:28 Z bazsi700 Popeala (CEOI16_popeala) C++14
17 / 100
 2000 ms 3556 KB 
#include <bits/stdc++.h>
using namespace std;

#define MOD 1000000007
#define ll long long int
#define vi vector<int>
#define vii vector< vector<int> >
#define PI 3.1415926535897932384626433832795
#define INF 9223372036854775807LL

bool solved[51][20001];
ll dp[20001][51];
int dpwith[20001][51];
int conssolved[51][20001]; //[x][y]=z means, the xth solved y-z+1,y-z+2,...,y tasks but not the y-z th

int main() {
	ios::sync_with_stdio(false);
	cin.tie(NULL);
	int n,t,s;
	cin >> n >> t >> s;
	vi p(t+1);
	for(int i = 1; i <= t; i++) {
		cin >> p[i];
	}
	for(int i = 1; i <= n; i++) {
		int lastnotsolv = 0;
		for(int j = 1; j <= t; j++) {
			char ch;
			cin >> ch;
			solved[i][j] = (ch == '1');
			if(!solved[i][j]) {
				lastnotsolv = j;
			}
			conssolved[i][j] = j-lastnotsolv;
		}
	}
	int sum = 0;
	for(int i = 1; i <= t; i++) {
		sum+= p[i];
		int solv = 0;
		for(int j = 1; j <= n; j++) {
			if(conssolved[j][i] == i) {
				solv++;
			}
		}
		dp[i][1] = solv*sum;
	}
	for(int i = 1; i <= t; i++) {
		for(int j = 2; j <= s; j++) {
			dp[i][j] = 2*MOD;
			sum = 0;
			vector<int> solves;
			for(int st = 1; st <= n; st++) {
				solves.push_back(conssolved[st][i]);
			}
			sort(solves.begin(),solves.end());
			int ind = 0;
			for(int currsiz = 1; currsiz <= i-j+1; currsiz++) {
				while(ind < n && solves[ind] < currsiz) {
					ind++;
				}
				sum+= p[i-currsiz+1];
				if(dp[i-currsiz][j-1]+(n-ind)*sum < dp[i][j]) {
					dp[i][j] = dp[i-currsiz][j-1]+(n-ind)*sum;
				//	dpwith[i][j] = currsiz;
				}
				if(dp[i][j] == dp[i][j-1]) {
					break;
				}
			}
			//cout << i << " " << j << " " << dp[i][j] << endl;
		}
	}
	for(int i = 1; i <= s; i++) {
		cout << dp[t][i] << "\n";
	}
	return 0;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 416 KB Output is correct
2 Correct 4 ms 820 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 77 ms 1252 KB Output is correct
2 Correct 73 ms 1268 KB Output is correct
3 Correct 77 ms 1268 KB Output is correct

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 697 ms 2336 KB Output is correct
2 Correct 1415 ms 3020 KB Output is correct
3 Execution timed out 2052 ms 3556 KB Time limit exceeded

Subtask #4
0 / 74.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 416 KB Output is correct
2 Correct 4 ms 820 KB Output is correct
3 Correct 77 ms 1252 KB Output is correct
4 Correct 73 ms 1268 KB Output is correct
5 Correct 77 ms 1268 KB Output is correct
6 Correct 697 ms 2336 KB Output is correct
7 Correct 1415 ms 3020 KB Output is correct
8 Execution timed out 2052 ms 3556 KB Time limit exceeded