제출 #488771

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
488771		Theo830	도로 폐쇄 (APIO21_roads)	C++17	컴파일 에러	0 ms	0 KiB

roads

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const ll INF = 1e9+7;
const ll MOD = 998244353;
typedef pair<ll,ll> ii;
#define iii pair<ii,ll>
#define f(i,a,b) for(ll i = a;i < b;i++)
#define pb push_back
#define vll vector<ll>
#define F first
#define S second
#define all(x) (x).begin(), (x).end()
///I hope I will get uprating and don't make mistakes
///I will never stop programming
///sqrt(-1) Love C++
///Please don't hack me
///@TheofanisOrfanou Theo830
///Think different approaches (bs,dp,greedy,graphs,shortest paths,mst)
///Stay Calm
///Look for special cases
///Beware of overflow and array bounds
///Think the problem backwards
///APIO 2021 vc
#include "roads.h"
std::vector<long long> minimum_closure_costs(int N, std::vector<int> U,std::vector<int> V,std::vector<int> W){
    vll ans;
    ll sum = 0;
    for(auto x:W){
        sum += x;
    }
    ans.pb(sum);
    ll dp[n] = {0};
    ll res = 0;
    dp[1] = W[0];
    f(i,1,n-1){
        dp[i+1] = max(dp[i-1] + W[i],dp[i]);
        res = max(res,dp[i+1]);
    }
    ans.pb(sum - res);
    f(i,3,n+1){
        ans.pb(0);
    }
    return ans;
}

컴파일 시 표준 에러 (stderr) 메시지

roads.cpp: In function 'std::vector<long long int> minimum_closure_costs(int, std::vector<int>, std::vector<int>, std::vector<int>)':
roads.cpp:33:11: error: 'n' was not declared in this scope
   33 |     ll dp[n] = {0};
      |           ^
roads.cpp:35:5: error: 'dp' was not declared in this scope
   35 |     dp[1] = W[0];
      |     ^~