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OI-codes/AcWing/830/830.cpp

23 lines
389 B
C++

#include <bits/stdc++.h>
using namespace std;
int n, a;
stack<int> st;
int main() {
cin >> n;
for (int i = 0; i < n; i++) {
cin >> a;
while (!st.empty() && st.top() >= a) st.pop();
if (st.empty()) {
cout << -1 << ' ';
} else {
cout << st.top() << ' ';
}
st.push(a);
}
cout << endl;
return 0;
}