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baekjoon17298.cpp
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74 lines (68 loc) · 1.22 KB
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#include <iostream>
#include <stack>
#define MAX 1000001
using namespace std;
typedef pair<int, int> pii;
int n, num, arr[MAX], record[MAX];
stack<pii> st;
int main() {
ios::sync_with_stdio(false);
cin.tie(0);
cin >> n;
for (int i = 0; i < n; i++) {
cin >> arr[i];
record[i] = -1;
}
for (int i = 0; i < n -1; i++) {
if (arr[i] < arr[i + 1]) {
record[i] = arr[i + 1];
while (!st.empty()) {
if (st.top().first < arr[i + 1]) {
record[st.top().second] = arr[i + 1];
st.pop();
}
else
break;
}
}
else {
st.push(make_pair(arr[i], i));
}
}
for (int i = 0; i < n; i++)
cout << record[i] << " ";
}
//#include <iostream>
//#include <stack>
//#define MAX 1000001
//using namespace std;
//
//typedef pair<int, int> pii;
//int n, num, arr[MAX];
//stack<int> st;
//
//int main() {
// ios::sync_with_stdio(false);
// cin.tie(0);
// cin >> n;
// for (int i = 0; i < n; i++) {
// cin >> arr[i];
// }
//
// for (int i = n - 1; i >= 0; i--) {
// int a = arr[i];
// while (!st.empty() && st.top() <= arr[i]) {
// st.pop();
// }
// if (st.empty()) {
// arr[i] = -1;
// }
// else {
// arr[i] = st.top();
// }
// st.push(a);
// }
//
// for (int i = 0; i < n; i++)
// cout << arr[i] << " ";
//}