#include "fish.h"
#include <bits/stdc++.h>
#define int long long
using namespace std;
vector<vector<int>> a;
vector<vector<int>> fsh;
vector<vector<int>> prfx;
vector<vector<int>> possprfx;
vector<vector<vector<int>>> memo;
int N,M;
//x N possible
//last N possible negatif et pas negatif
//big 3 possible
int dp(int x, int last, int big){
if(memo[x][last][big]!=-1) return memo[x][last][big];
if(x==N) {
return 0;
}
int mx = 0;
for (auto i:fsh[x]) //O(3)
{
if(i>last&&big==0) continue;
int c=0;
if(i==0) c=dp(x+1, last, 1+(last>0));
else c+=dp(x+1, i, (i>last));
if(i==0&&last>0) {
if(big<2) c+=prfx[x][last-1];
}
else if(last>i) {
c+=prfx[x][last-1]-prfx[x][i-1];
}
else if(i>last&&x>0){
int ng=0;
if(last>0) ng=prfx[x-1][last-1];
c+=prfx[x-1][i-1]-ng;
}
mx=max(c, mx);
}
return memo[x][last][big]=mx;
}
long long max_weights(signed n, signed m, std::vector<signed> X, std::vector<signed> Y, std::vector<signed> W) {
N=n; M=m;
fsh.resize(N,vector<int>(1,0));
prfx.resize(N+1, vector<int>(N+1,0));
possprfx.resize(N+1, vector<int>(N+1,0));
memo.resize(N+1, vector<vector<int>>(2*(N+1), vector<int>(3,-1)));
a.resize(N+1, vector<int>((N+1), 0));
for (int i = 0; i < M; i++){
a[X[i]][Y[i]] = W[i];
//fsh[X[i]+1].push_back(Y[i]+1);
//if(X[i]>0) fsh[X[i]-1].push_back(Y[i]+1);
}
for (int i = 0; i < N; i++) sort(fsh[i].begin(),fsh[i].end()); // N log N
for (int i = 0; i < N; i++) //N*N
{
for (int j = 0; j < N; j++)
{
prfx[i][j]=a[i][j];
if(j>0) prfx[i][j]+=prfx[i][j-1];
}
}
for (int i = 0; i < N; i++) //N*N
{
int mxIndx=-1;
int mx=0;
//decrease
for (int j = 0; j < N; j++)
{
possprfx[i][j]-=a[i][j];
if(j>0) possprfx[i][j]+=possprfx[i][j-1];
if(i<N-1) possprfx[i][j]+=a[i+1][j];
if(possprfx[i][j]>mx) { mxIndx=j; mx=possprfx[i][j]; }
}
fsh[i].push_back(mxIndx+1);
mxIndx=-1;
mx=0;
//increase
for (int j = 0; j < N; j++)
{
if(j>0) possprfx[i][j]=possprfx[i][j-1];
if(i>0) possprfx[i][j]+=a[i-1][j];
if(possprfx[i][j]>mx) { mxIndx=j; mx=possprfx[i][j]; }
}
fsh[i].push_back(mxIndx+1);
}
int p=dp(0,0,1); //(N*2N*2*N) (300*600*300*2) (108.000.000)
return p;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
930 ms |
2097152 KB |
Execution killed with signal 9 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
344 KB |
Output is correct |
| 2 |
Runtime error |
842 ms |
2097152 KB |
Execution killed with signal 9 |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
815 ms |
2097152 KB |
Execution killed with signal 9 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
344 KB |
Output is correct |
| 2 |
Correct |
1 ms |
600 KB |
Output is correct |
| 3 |
Correct |
1 ms |
348 KB |
Output is correct |
| 4 |
Correct |
1 ms |
348 KB |
Output is correct |
| 5 |
Correct |
0 ms |
348 KB |
Output is correct |
| 6 |
Correct |
0 ms |
356 KB |
Output is correct |
| 7 |
Correct |
0 ms |
436 KB |
Output is correct |
| 8 |
Correct |
0 ms |
348 KB |
Output is correct |
| 9 |
Incorrect |
4 ms |
3420 KB |
1st lines differ - on the 1st token, expected: '216624184325', found: '201629176477' |
| 10 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
344 KB |
Output is correct |
| 2 |
Correct |
1 ms |
600 KB |
Output is correct |
| 3 |
Correct |
1 ms |
348 KB |
Output is correct |
| 4 |
Correct |
1 ms |
348 KB |
Output is correct |
| 5 |
Correct |
0 ms |
348 KB |
Output is correct |
| 6 |
Correct |
0 ms |
356 KB |
Output is correct |
| 7 |
Correct |
0 ms |
436 KB |
Output is correct |
| 8 |
Correct |
0 ms |
348 KB |
Output is correct |
| 9 |
Incorrect |
4 ms |
3420 KB |
1st lines differ - on the 1st token, expected: '216624184325', found: '201629176477' |
| 10 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
344 KB |
Output is correct |
| 2 |
Correct |
1 ms |
600 KB |
Output is correct |
| 3 |
Correct |
1 ms |
348 KB |
Output is correct |
| 4 |
Correct |
1 ms |
348 KB |
Output is correct |
| 5 |
Correct |
0 ms |
348 KB |
Output is correct |
| 6 |
Correct |
0 ms |
356 KB |
Output is correct |
| 7 |
Correct |
0 ms |
436 KB |
Output is correct |
| 8 |
Correct |
0 ms |
348 KB |
Output is correct |
| 9 |
Incorrect |
4 ms |
3420 KB |
1st lines differ - on the 1st token, expected: '216624184325', found: '201629176477' |
| 10 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
815 ms |
2097152 KB |
Execution killed with signal 9 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
930 ms |
2097152 KB |
Execution killed with signal 9 |
| 2 |
Halted |
0 ms |
0 KB |
- |
