Submission #627013

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
627013	2022-08-12 04:40:49	jhhope1	Catfish Farm (IOI22_fish)	C++17	100 / 100	157 ms	26440 KiB

fish

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#include <bits/stdc++.h>
#include "fish.h"
#include <vector>
using namespace std;
typedef long long ll;
typedef pair<ll, ll> pii;
typedef pair<pii, ll> tri;
const int MAXN = 100010;
const ll INF = 1e18;
vector<pii> HW[MAXN];
long long max_weights(int N, int M, std::vector<int> X, std::vector<int> Y, std::vector<int> W) {
    vector<tri> P;
    for(int i=0 ; i<M ; i++){
        P.emplace_back(pii(X[i], Y[i]), W[i]);
    }
    sort(P.begin(), P.end());
    for(int i=0 ; i<M ; i++){
        HW[P[i].first.first].emplace_back(P[i].first.second, P[i].second);
    }
    
    vector<ll> U(HW[0].size(), 0), D(HW[0].size(), 0);
    ll T = 0, S = 0;
    for(int j=0 ; j<HW[0].size() ; j++){
        S += HW[0][j].second;
        D[j] = S;
    }
    for(int i=1 ; i<N ; i++){
        vector<ll> new_U(HW[i].size(), 0), new_D(HW[i].size(), 0);
 
 
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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:24:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |     for(int j=0 ; j<HW[0].size() ; j++){
      |                   ~^~~~~~~~~~~~~
fish.cpp:40:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   40 |             if(idx < U.size()){
      |                ~~~~^~~~~~~~~~
fish.cpp:47:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   47 |         for(int j=0 ; j<HW[i].size() ; j++){
      |                       ~^~~~~~~~~~~~~
fish.cpp:55:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   55 |         for(int j=0 ; j<HW[i].size() ; j++){
      |                       ~^~~~~~~~~~~~~
fish.cpp:58:32: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   58 |             if(idx >= 0 && idx < U.size()){
      |                            ~~~~^~~~~~~~~~

• 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