Submission #661160

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
661160	2022-11-24 19:16:27	mychecksedad	Catfish Farm (IOI22_fish)	C++17	100 / 100	306 ms	57308 KiB

fish

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#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;
#define pb push_back
const int N = 1e5 + 100;
long long max_weights(int n, int m, vector<int> x, vector<int> y, vector<int> w){  
    vector<ll> fishes[N];
    vector<vector<int>> states(n + 1, {0});
    for(int i = 0; i < m; ++i){
        ++y[i];
        for(int k = max(0, x[i] - 1); k <= min(n - 1, x[i] + 1); ++k){
            states[k].pb(y[i]);
        }
    }
    for(int i = 0; i <= n; ++i){
        sort(states[i].begin(), states[i].end());
        states[i].erase(unique(states[i].begin(), states[i].end()), states[i].end());
        fishes[i].resize(states[i].size());
    }
    for(int i = 0; i < m; ++i){
        int j = x[i];
        int Y = lower_bound(states[j].begin(), states[j].end(), y[i]) - states[j].begin();
        fishes[j][Y] += w[i];
    }
    vector<vector<ll>> dp_up(n + 1), dp_down(n + 1);
    for(int i = 0; i <= n; ++i){
        int sz = states[i].size();
 
 
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Compilation message (stderr)

fish.cpp: In function 'long long int max_weights(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
fish.cpp:36:32: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   36 |                 while(left + 1 < states[i - 1].size() && states[i - 1][left + 1] <= states[i][j]){
      |                       ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
fish.cpp:57:33: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   57 |                 while(leftt + 1 < states[i - 2].size() && states[i - 2][leftt + 1] <= states[i][j]){
      |                       ~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
fish.cpp:59:36: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   59 |                     while(left + 1 < states[i - 1].size() && states[i - 1][left + 1] <= states[i][j]){
      |                           ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 3 / 3
• Subtask 2: 6 / 6
• Subtask 3: 9 / 9
• Subtask 4: 14 / 14
• Subtask 5: 21 / 21
• Subtask 6: 17 / 17
• Subtask 7: 14 / 14
• Subtask 8: 16 / 16