제출 #1339357

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1339357		matsakyannn	수열 (APIO14_sequence)	C++20	0 / 100	0 ms	344 KiB

sequence

#define _CRT_SECURE_NO_WARNINGS
#include <bits/stdc++.h>
#include <cstdio>
//#include <sys/resource.h>
using namespace std;
 
#ifndef ONLINE_JUDGE
#define dbg(x) cerr << #x <<" "; print(x); cerr << endl;
#else
#define dbg(x)
#endif
 
void print(long long t) {cerr << t;}
void print(int t) {cerr << t;}
void print(string t) {cerr << t;}
void print(char t) {cerr << t;}
void print(double t) {cerr << t;}
void print(long double t) {cerr << t;}
void print(unsigned long long t) {cerr << t;}
 
template <class T, class V> void print(pair <T, V> p);
template <class T> void print(vector <T> v);
template <class T> void print(set <T> v);
template <class T, class V> void print(map <T, V> v);
template <class T> void print(multiset <T> v);
template <class T> void print(deque <T> v);
template <class T, class V> void print(pair <T, V> p) {cerr << "{"; print(p.first); cerr << ","; print(p.second); cerr << "}";}
template <class T> void print(vector <T> v) {cerr << "[ "; for (T i : v) {print(i); cerr << " ";} cerr << "]";}
template <class T> void print(set <T> v) {cerr << "[ "; for (T i : v) {print(i); cerr << " ";} cerr << "]";}
template <class T> void print(multiset <T> v) {cerr << "[ "; for (T i : v) {print(i); cerr << " ";} cerr << "]";}
template <class T, class V> void print(map <T, V> v) {cerr << "[ "; for (auto i : v) {print(i); cerr << " ";} cerr << "]";}
template <class T> void print(queue <T> q) {cerr << "[ "; while(!q.empty()) {print(q.front()); cerr << " "; q.pop();} cerr << "]";}
template <class T> void print(priority_queue <T> q) {cerr << "[ "; while(!q.empty()) {print(q.top()); cerr << " "; q.pop();} cerr << "]";}
template <class T> void print(deque <T> v) {cerr << "[ "; for (T i : v) {print(i); cerr << " ";} cerr << "]";}
template <class T> void print(int n__, T arr[]) {cerr << "[ "; for(int i = 0; i <= n__; i++) {print(arr[i]); cerr << " ";} cerr << "]\n";}
 
 
#define pb push_back
#define YES cout << "YES\n"
#define NO cout << "NO\n"
#define noAnsw cout << -1 << '\n'
#define ll long long
#define ppb pop_back
#define OK cout << "OK" << endl;
#define ld long double
#define all(v) (v).begin(), (v).end()
#define MP make_pair
#define PII pair <int, int>
#define endl '\n'
#define ull unsigned long long
#define PLL pair <ll, ll>
#define PIL pair <int, ll>
#define PLI pair <ll, int>
#define rall(v) (v).rbegin(), (v).rend() 
#define priora priority_queue
#define urishOK cout << "urishOK\n";
 
// void increaseStack(rlim_t stackSize) {
//     struct rlimit rl;
//     int result;
//     result = getrlimit(RLIMIT_STACK, &rl);
//     if (result == 0) {
//         if (rl.rlim_cur < stackSize) {
//             rl.rlim_cur = stackSize;
//             result = setrlimit(RLIMIT_STACK, &rl);
//             if (result != 0) {
//                 cerr << "Error setting stack size." << endl;
//             }
//         }
//     }
// }
void setIO(string name = "") {
	if (!name.empty()) {
		freopen((name + ".in").c_str(), "r", stdin);  
		freopen((name + ".out").c_str(), "w", stdout);
	}
}
void fastIO(){
    ios_base::sync_with_stdio(false);
	cin.tie(NULL); cout.tie(NULL); 
}
void setPrecision(int x){
    if(x == 0){
        return;
    }
    cout.setf(ios::fixed);
    cout.precision(x);
    return;
}
 
const int inf = 1e9 + 5, LOG = 30;
const ll inf64 = 1e18 + 5, mod = 1e9 + 7, wmod = 998244353;
const double epsilon = 0.000001, pi = 3.14159265359;
 
const int N = 1e5 + 5, K = 205;
int n, k;
ll dp[N][2], a[N];
int opt[N][K];

ll cost(int i, int j) {return (a[i] - a[j]) * a[j];}

void solve(int TST_NUM){
    cin >> n >> k;
    for(int i = 1; i <= n; i++){
        cin >> a[i];
        a[i] += a[i - 1];
    }
    for(int i = 1; i <= n; i++) dp[i][0] = 0;
    for(int j = 2; j <= k + 1; j++){
        for(int i = 1; i <= n; i++){
            for(int t = 1; t < i; t++){
                if(dp[t][0] + cost(i, t) > dp[i][1]){
                    dp[i][1] = dp[t][0] + cost(i, t);
                    opt[i][j] = t;
                }
            } 
        }
        // for(int i = 1; i <= n; i++){
        //     cout << "dp[" << i << "][" << j << "] = " << dp[i][1] << endl;
        // }
        for(int i = 1; i <= n; i++){
            dp[i][0] = dp[i][1];
            dp[i][1] = 0;
        }
    }
    cout << dp[n][0] << endl;
    int curr = n;
    vector <int> answ;
    for(int i = k + 1; i >= 2; i--){
        answ.pb(opt[curr][i]);
        curr = opt[curr][i];
    }
    reverse(all(answ));
    for(int i : answ){
        cout << i << ' ';
    }
    cout << endl;
}   
 
int main(){
    setPrecision(1);
    fastIO();
    //increaseStack(64 * 1024 * 1024);
    //setIO("file");
 
    int Tests = 1;
    //cin >> Tests;
 
    int TST_NUM = 1;
    while(Tests--){
        solve(TST_NUM++);
    }
    return 0; 
} 
//mcmcmcmcmcmcmcmcmcmcmc
//mcmcmcmcmcmcmcmcmcmcmc
//mcmcmcmcmcmcmcmcmcmcmc
//mcmcmcmcmcmcmcmcmcmcmc
//matsak

컴파일 시 표준 에러 (stderr) 메시지

sequence.cpp: In function 'void setIO(std::string)':
sequence.cpp:74:24: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   74 |                 freopen((name + ".in").c_str(), "r", stdin);
      |                 ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sequence.cpp:75:24: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   75 |                 freopen((name + ".out").c_str(), "w", stdout);
      |                 ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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