제출 #661064

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
661064	2022-11-24 07:13:54	mychecksedad	메기 농장 (IOI22_fish)	C++17	12 / 100	431 ms	123576 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;
vector<ll> dp[N][2], pref[N][3], dp_pref[N], dp_suf[N], dp_pref_max[N]; //pref:  0 : itself, 1 : left one, 2 : right one
vector<int> v[N], p[N];
long long max_weights(int n, int m, std::vector<int> x, std::vector<int> y, std::vector<int> w){  
    for(int i = 0; i < m; ++i){
        v[x[i]].pb(i);
        if(x[i] > 0) v[x[i] - 1].pb(i);
        if(x[i] < n - 1) v[x[i] + 1].pb(i);
    }
    for(int i = 0; i <= n; ++i){
        int s = v[i].size() + 1;
        p[i].pb(0);
        for(int a: v[i]) p[i].pb(y[a] + 1);
        sort(p[i].begin(), p[i].end());
        for(int k = 0; k < 3; ++k){
            pref[i][k].resize(s);
        }
        dp[i][0].resize(s);
        dp[i][1].resize(s);
        dp_pref[i].resize(s);
        dp_suf[i].resize(s);
 
 
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컴파일 시 표준 에러 (stderr) 메시지

fish.cpp: In function 'long long int max_weights(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
fish.cpp:44:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   44 |             for(int j = 1; j < pref[i][k].size(); ++j) pref[i][k][j] += pref[i][k][j - 1];
      |                            ~~^~~~~~~~~~~~~~~~~~~
fish.cpp:69:68: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   69 |             dp[i][1][j] = pref[i][2][j] - pref[i][0][j] + (pos + 1 == dp_suf[i - 1].size() ? 0 : dp_suf[i - 1][pos + 1]);
      |                                                            ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~

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