#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>>> dp;
int N,M;
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+1);
prfx.resize(N+1, vector<int>(N+1,0));
possprfx.resize(N+1, vector<int>(N+1,0));
dp.resize(N+1, vector<vector<int>>((N+1), vector<int>(3,0)));
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];
}
}
int mx=0;
for (int x = N-1; x >= 0; x--) // O(N)
{
int _mx=-1, _mxI=0;
for (int i = 0; i <= N; i++)
{
int cmx=max(dp[x+1][i][0],max(dp[x+1][i][1],dp[x+1][i][2]));
if(cmx>_mx) _mxI=i;
_mx=max(_mx,cmx);
}
fsh[x].push_back(_mxI);
_mx=-1, _mxI=N;
for (int i = N; i >= 0; i--)
{
int cmx=max(dp[x+1][i][0],max(dp[x+1][i][1],dp[x+1][i][2]));
if(cmx>_mx) _mxI=i;
_mx=max(_mx,cmx);
}
fsh[x].push_back(_mxI);
for (int last = 0; last <= N; last++) // O(N)
{
if(x==0&&last>0) break;
for (int big = 0; big <= 2; big++)// O(2)
{
for (auto i:fsh[x]) // O(3)
{
if(i>last&&big==0) continue;
int c=0;
if(i==0) {
if(big!=2) c=dp[x+1][last][1+(last>0)];
else c=dp[x+1][0][1];
}
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&&big<2) {
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;
}
dp[x][last][big]=max(c, dp[x][last][big]);
mx=max(dp[x][last][big],mx);
}
//zcerr<<x << " " << last << " " << big << " = " << dp[x][last][big] << "\n";
}
}
}
return mx;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
917 ms |
2097152 KB |
Execution killed with signal 9 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Runtime error |
766 ms |
2097152 KB |
Execution killed with signal 9 |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
767 ms |
2097152 KB |
Execution killed with signal 9 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
348 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
0 ms |
348 KB |
Output is correct |
| 6 |
Correct |
1 ms |
348 KB |
Output is correct |
| 7 |
Correct |
1 ms |
348 KB |
Output is correct |
| 8 |
Incorrect |
0 ms |
344 KB |
1st lines differ - on the 1st token, expected: '2', found: '1' |
| 9 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
348 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
0 ms |
348 KB |
Output is correct |
| 6 |
Correct |
1 ms |
348 KB |
Output is correct |
| 7 |
Correct |
1 ms |
348 KB |
Output is correct |
| 8 |
Incorrect |
0 ms |
344 KB |
1st lines differ - on the 1st token, expected: '2', found: '1' |
| 9 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
348 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
0 ms |
348 KB |
Output is correct |
| 6 |
Correct |
1 ms |
348 KB |
Output is correct |
| 7 |
Correct |
1 ms |
348 KB |
Output is correct |
| 8 |
Incorrect |
0 ms |
344 KB |
1st lines differ - on the 1st token, expected: '2', found: '1' |
| 9 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
767 ms |
2097152 KB |
Execution killed with signal 9 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
917 ms |
2097152 KB |
Execution killed with signal 9 |
| 2 |
Halted |
0 ms |
0 KB |
- |
