| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 844819 |
2023-09-06T01:56:23 Z |
dutinmeow |
Gap (APIO16_gap) |
C++17 |
|
0 ms |
0 KB |
#include "gap.h"
#include <bits/stdc++.h>
template<typename T>
bool chmax(T &a, T b) {
if (a >= b)
return false;
a = b;
return true;
}
long long findGap(int t, int n) {
if (t == 1) {
std::vector<long long> a;
a.reserve(n);
long long bl = 0, br = 1e18;
for (int i = 0; i < (n + 1) / 2; i++) {
long long al, ar;
MinMax(bl, br, &al, &ar);
a.push_back(al);
a.push_back(ar);
bl = al + 1, br = ar - 1;
}
if (a.size() > n)
a.pop_back();
std::sort(a.begin(), a.end());
long long r = 0;
for (int i = 1; i < n; i++)
chmax(r, a[i] - a[i - 1]);
return r;
} else {
long long bl, br;
MinMax(1, 1e18, &bl, &br);
long long s = (br - bl - 1) / (n - 1);
long long lb, r = s;
for (lb = l; lb + s < r; lb += s + 1) {
long long nl, nr;
MinMax(lb, lb + s, &nl, &nr);
if (nl != -1 && nr != -1) {
chmax(r, nl - l)
l = nr;
}
}
long long nl, nr;
MinMax(lb, r, &nl, &nr);
if (nl != -1 && nr != -1)
chmax(r, nl - l);
return r;
}
}
Compilation message
gap.cpp: In function 'long long int findGap(int, int)':
gap.cpp:25:16: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
25 | if (a.size() > n)
| ~~~~~~~~~^~~
gap.cpp:37:13: error: 'l' was not declared in this scope
37 | for (lb = l; lb + s < r; lb += s + 1) {
| ^
gap.cpp:48:18: error: 'l' was not declared in this scope; did you mean 'nl'?
48 | chmax(r, nl - l);
| ^
| nl
