Submission #442032

#	Time	Username	Problem	Language	Result	Execution time	Memory
442032		JovanB	Restore Array (RMI19_restore)	C++17	100 / 100	146 ms	836 KiB

restore

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

using ll = long long;
using ld = long double;

const int MAXN = 100000;

int dist[MAXN+5];

const int INF = 1000000000;

int ea[MAXN+5];
int eb[MAXN+5];
int ec[MAXN+5];

int main(){
    ios_base::sync_with_stdio(false), cin.tie(0);
    cout.precision(10);
    cout << fixed;

    int n, m;
    cin >> n >> m;
    for(int i=1; i<=m; i++){
        int l, r, k, val;
        cin >> l >> r >> k >> val;
        l++;
        r++;
        if(val == 1){
            ea[i] = l-1;
            eb[i] = r;
            ec[i] = k-1;
        }
        else{
            ea[i] = r;
            eb[i] = l-1;
            ec[i] = -k;
        }
    }
    for(int i=1; i<=n; i++){
        m++;
        ea[m] = i-1;
        eb[m] = i;
        ec[m] = 1;
        m++;
        ea[m] = i;
        eb[m] = i-1;
        ec[m] = 0;
    }
    for(int i=1; i<=n; i++) dist[i] = INF;
    for(int k=0; k<n; k++){
        for(int j=1; j<=m; j++){
            int a = ea[j];
            int b = eb[j];
            int c = ec[j];
            if(dist[b] > dist[a] + c){
                dist[b] = dist[a] + c;
                if(dist[b] < 0){
                    cout << "-1\n";
                    return 0;
                }
            }
        }
    }
    for(int j=1; j<=m; j++){
        int a = ea[j];
        int b = eb[j];
        int c = ec[j];
        if(dist[b] > dist[a] + c){
            cout << "-1\n";
            return 0;
        }
    }
    for(int i=1; i<=n; i++){
        cout << (1^(dist[i] - dist[i-1])) << " ";
    }
    cout << "\n";
    return 0;
}

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