Submission #568106

#	Time	Username	Problem	Language	Result	Execution time	Memory
568106		lacito	Restore Array (RMI19_restore)	C++14	100 / 100	325 ms	1380 KiB

restore

#pragma GCC optimize ("Ofast")
#pragma GCC target ("avx,avx2,fma")

#include "bits/stdc++.h"
using namespace std;

#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;

template<class x>
using ordered_set = tree<x, null_type,less<x>, rb_tree_tag,tree_order_statistics_node_update>;

#define int long long
#define endl '\n'
#define mod 1000000007
//\
#define mod 1686876991

const int maxn = 1000001;

const int INF = 1e8;

int dist[maxn];

vector<array<int, 3>> E;

signed main () {
    cin.tie(0)->sync_with_stdio(0);

    int n, m;
    cin >> n >> m;

    for (int i = 0 ; i < m ; i++) {
        int x, y, k, v;
        cin >> x >> y >> k >> v;
        x++,y++;
        int s = y - x + 1;
        if (v == 1) {
            k--;
            E.push_back({y, x - 1, k - s});
            //cerr << y << " " << x - 1 << " " << k - s << endl;
        } else {
            E.push_back({x - 1, y, s - k});
            //cerr << x - 1 << " " << y << " " << s - k << endl;
        }
    }

    for (int i = 1 ; i <= n ; i++) dist[i] = INF;

    for (int i = 0 ; i < n ; i++) {
        E.push_back({i, i + 1, 1});
        E.push_back({i + 1, i, 0});
        //cerr << i << " " << i + 1 << " " << 1 << endl;
        //cerr << i + 1 << " " << i << " " << 0 << endl;
    }

    for (int iter = 0 ; iter < n ; iter++) {
        // for (int i = 0 ; i <= n ; i++) {
        //     cerr << dist[i] << " ";
        // }
        // cerr << endl;
        for (auto [u,v,w] : E) {
            if (dist[u] != INF)
                dist[v] = min(dist[v], dist[u] + w);
        }
    }

    bool imp = 0;

    for (auto [u,v,w] : E) {
        if (dist[v] != INF && dist[u] != INF && dist[v] > dist[u] + w) imp = 1;
    }

    // for (int i = 0 ; i <= n ; i++) {
    //         cerr << dist[i] << " ";
    // }

    if (imp) cout << -1;
    else {
        for (int i = 1 ; i <= n ; i++) {
            cout << (dist[i] > dist[i-1]) << " ";
        }
    }
}

Compilation message (stderr)

restore.cpp:17:1: warning: multi-line comment [-Wcomment]
   17 | //\
      | ^
restore.cpp: In function 'int main()':
restore.cpp:63:19: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   63 |         for (auto [u,v,w] : E) {
      |                   ^
restore.cpp:71:15: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   71 |     for (auto [u,v,w] : E) {
      |               ^

• Subtask 1: 7 / 7
• Subtask 2: 13 / 13
• Subtask 3: 25 / 25
• Subtask 4: 55 / 55