Submission #997899

#	Time	Username	Problem	Language	Result	Execution time	Memory
997899		yanb	Stone Arranging 2 (JOI23_ho_t1)	C++14	100 / 100	109 ms	18004 KiB

Main

#include <bits/stdc++.h>
    
using namespace std;
    
#define int long long
    
signed main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    
    int n;
    cin >> n;
    vector<int> a(n);
    for (int i = 0; i < n; i++) cin >> a[i];
    
    vector<int> nxt(n);
    map<int, int> last;
    for (int i = n - 1; i >= 0; i--) {
        nxt[i] = (last[a[i]] ? last[a[i]] : -1);
        last[a[i]] = i;
    }
    
    int i = 0;
    while (i < n) {
        int x = i;
        for (; i < nxt[x]; i++) {
            a[i] = a[x];
        }
        if (x == i) i++;
    }
    
    for (int i = 0; i < n; i++) cout << a[i] << "\n";
}   

• Subtask 1: 25 / 25
• Subtask 2: 35 / 35
• Subtask 3: 40 / 40