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OI-codes/AcWing/136/136.cpp

28 lines
674 B
C++

#include <bits/stdc++.h>
using namespace std;
int n, x;
set<pair<int, int>> s;
int main() {
cin >> n;
s.insert({make_pair(INT_MIN, 0), make_pair(INT_MAX, 0)});
for (int i = 1; i <= n; i++) {
cin >> x;
if (i > 1) {
auto it1 = s.upper_bound(make_pair(x, 0));
auto it2 = it1--;
long long x1 = 0ll + x - it1->first;
long long x2 = 0ll + it2->first - x;
if (x1 <= x2) {
cout << x1 << ' ' << it1->second << endl;
} else {
cout << x2 << ' ' << it2->second << endl;
}
}
s.insert(make_pair(x, i));
}
return 0;
}