#include "fish.h"
#include<bits/stdc++.h>
using namespace std;
#define int long long int
vector<vector<int>> ind;
vector<vector<pair<int, int>>> pref;
int query(int i, int j) {
return 0;
pair<int, int> c = {j, INT64_MAX};
auto ind = upper_bound(pref[i].begin(), pref[i].end(), c);
ind--;
c = *ind;
return c.second;
}
int max_weights(int32_t N, int32_t M, vector<int32_t> X, vector<int32_t> Y, vector<int32_t> W) {
int n = N, m = M;
pref.resize(n+5);
ind.resize(n+5);
for (int i = 0; i < m; i++) {
pref[X[i]].push_back({Y[i], W[i]});
}
pref[n] = {{-1, 0}};
for (int i = 0; i <= n; i++) {
pref[i].push_back({-1, 0}); // to make 1-indexed
sort(pref[i].begin(), pref[i].end());
}
for (int i = 0; i <= n; i++) {
for (int j = 1; j < pref[i].size(); i++) {
pref[i][j].second += pref[i][j-1].second;
}
}
for (int i = 0; i < n; i++) {
if (i != 0) {
for (auto [a, b] : pref[i-1]) {
ind[i].push_back(a);
}
}
for (auto [a, b] : pref[i+1]) {
ind[i].push_back(a);
}
sort(ind[i].begin(), ind[i].end());
ind[i].erase(unique(ind[i].begin(), ind[i].end()), ind[i].end());
}
ind[n].push_back(-1);
vector<vector<int>> dp(2, vector<int>(ind[0].size()+5, 0)); // 0 is increasing, 1 is decreasing, increasing can go to decreasing, decreasing cant go to increasing if next to eachother
for (int j = 1; j <= n; j++) {
vector<vector<int>> tdp(2, vector<int>(ind[j].size()+5, 0));
int v = 0, k = 0;
for (int i = 0; i < ind[j].size(); i++) {
int x = ind[j][i];
while(k < ind[j-1].size() && ind[j-1][k] <= x) {
v = max(v, dp[0][k]-query(j-1, ind[j-1][k]));
k++;
}
tdp[0][i] = max(v+query(j-1, x), dp[1][0]);
}
v = 0;
k = ind[j-1].size();
for (int i = ind[j].size()-1; i >= 0; i--) {
int x = ind[j][i];
while(k > 0 && ind[j-1][k-1] >= x) {
k--;
v = max(v, max(dp[0][k], dp[1][k])+query(j, ind[j-1][k]));
}
tdp[1][i] = v-query(j, x);
}
swap(dp[0], tdp[0]);
swap(dp[1], tdp[1]);
}
int ans = max(dp[0][0], dp[1][0]);
return ans;
}
Compilation message
fish.cpp: In function 'long long int max_weights(int32_t, int32_t, std::vector<int>, std::vector<int>, std::vector<int>)':
fish.cpp:28:27: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
28 | for (int j = 1; j < pref[i].size(); i++) {
| ~~^~~~~~~~~~~~~~~~
fish.cpp:49:27: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
49 | for (int i = 0; i < ind[j].size(); i++) {
| ~~^~~~~~~~~~~~~~~
fish.cpp:51:21: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
51 | while(k < ind[j-1].size() && ind[j-1][k] <= x) {
| ~~^~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
44 ms |
15812 KB |
1st lines differ - on the 1st token, expected: '40313272768926', found: '0' |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
0 ms |
344 KB |
1st lines differ - on the 1st token, expected: '2', found: '0' |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
17 ms |
11348 KB |
1st lines differ - on the 1st token, expected: '10082010', found: '0' |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
0 ms |
348 KB |
1st lines differ - on the 1st token, expected: '3', found: '0' |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
0 ms |
348 KB |
1st lines differ - on the 1st token, expected: '3', found: '0' |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
0 ms |
348 KB |
1st lines differ - on the 1st token, expected: '3', found: '0' |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
17 ms |
11348 KB |
1st lines differ - on the 1st token, expected: '10082010', found: '0' |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
44 ms |
15812 KB |
1st lines differ - on the 1st token, expected: '40313272768926', found: '0' |
| 2 |
Halted |
0 ms |
0 KB |
- |
