Submission #715397

#	Time	Username	Problem	Language	Result	Execution time	Memory
715397		study	Gap (APIO16_gap)	C++17	30 / 100	49 ms	2264 KiB

gap

#include <bits/stdc++.h>
#include "gap.h"
using ll = unsigned long long;
using namespace std;

long long findGap(int T, int N){
	ll pmini = 0, pmaxi = 1e18+2;
	vector<ll> ans;
	bool ok1 = 0, ok2 = 0;
	for (int i=0; i<(N+1)/2; ++i){
		long long a,b;
		MinMax(pmini,pmaxi,&a,&b);
		ans.emplace_back(a);
		ans.emplace_back(b);
		pmini = a+1;
		pmaxi = b-1;
	}
	sort(ans.begin(),ans.end());
	ans.erase(unique(ans.begin(),ans.end()),ans.end());
	ll res = 0;
	for (int i=1; i<ans.size(); ++i){
		res = max(res,ans[i]-ans[i-1]);
	}
	return res;
}

Compilation message (stderr)

gap.cpp: In function 'long long int findGap(int, int)':
gap.cpp:21:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long unsigned int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   21 |  for (int i=1; i<ans.size(); ++i){
      |                ~^~~~~~~~~~~
gap.cpp:9:7: warning: unused variable 'ok1' [-Wunused-variable]
    9 |  bool ok1 = 0, ok2 = 0;
      |       ^~~
gap.cpp:9:16: warning: unused variable 'ok2' [-Wunused-variable]
    9 |  bool ok1 = 0, ok2 = 0;
      |                ^~~

• Subtask 1: 30 / 30
• Subtask 2: 0 / 70