제출 #1193518

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1193518		cpdreamer	Painting Walls (APIO20_paint)	C++20	15 / 100	1563 ms	21592 KiB

paint

#include "paint.h"
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
const long double EPS = 1e-9;
const ll MOD=998244353;
#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
typedef tree<int,null_type,greater<int>,rb_tree_tag,
        tree_order_statistics_node_update> indexed_set;
void file(){
    freopen("input.txt.txt","r",stdin);
    freopen("output.txt.txt","w",stdout);
}
#define V vector
#define pb push_back
#define P pair
#define S second
#define F first
#define all(v) v.begin(),v.end()
bool check(V<int>a,V<set<int>>b,int id){
    if(a.size()!=b.size())return false;
    int n=(int)a.size();
    bool f=true;
    for(int j=id,cnt=0;cnt<n;j++,cnt++){
        if(b[j%n].count(a[cnt])==0)f=false;
    }
    if(f)return true;
    return false;
}

int minimumInstructions(
        int N, int M, int K, std::vector<int> C,
        std::vector<int> A, std::vector<std::vector<int>> B) {
    ll dp[N];
    for(int i=0;i<N;i++){
        dp[i]=1e15;
    }
    V<set<int>>b(M);
    map<int,V<int>>mp;
    for(int i=0;i<M;i++){
        for(auto u:B[i]){
            b[i].insert(u);
            mp[u].pb(i);
        }
    }
    if(M==1 && check({C[0]},b,0)){
        dp[0]=1;
    }
    for(int i=1;i<N;i++){
        ll v=1e15;
        V<int>a;
        a.pb(C[i]);
        for(int j=i-1;j>=max(i-M,0);j--){
            v=min(v,dp[j]);
            if(j==i-M)continue;
            a.pb(C[j]);
        }
        reverse(all(a));
        bool f=false;
        if(i>=M-1) {
            for (auto u: mp[C[i-M+1]]) {
                if (check(a, b, u))f = true;
            }
        }
        if(f){
            if(i==M-1)v=0;
            dp[i]=v+1;
        }
    }
    if(dp[N-1]>=(ll)1e15)
        return -1;
    return (int)dp[N-1];
}

컴파일 시 표준 에러 (stderr) 메시지

paint.cpp: In function 'void file()':
paint.cpp:12:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |     freopen("input.txt.txt","r",stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
paint.cpp:13:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 |     freopen("output.txt.txt","w",stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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• Subtask 2: 15 / 15
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