baoshuo/OI-codes
baoshuo/OI-codes
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136. 邻值查找

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https://www.acwing.com/problem/content/submission/code_detail/8040990/
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Baoshuo Ren 2021-10-04 16:10:00 +08:00 committed by Baoshuo Ren
parent e2d63a2999
commit 12dbf98263
Signed by: baoshuo
GPG Key ID: 70F90A673FB1AB68
1 changed files with 27 additions and 0 deletions
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AcWing/136/136.cpp Normal file
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#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;
}