Submission #554169

#	Time	Username	Problem	Language	Result	Execution time	Memory
554169		QwertyPi	Gap (APIO16_gap)	C++14	100 / 100	94 ms	5796 KiB

gap

#include "gap.h"
#include <bits/stdc++.h>
typedef long long ll;
using namespace std;
long long findGap(int T, int N)
{
	ll ans = 0;
	if(T == 1){
		ll L = -1, R = (ll) 1e18+1;
		set<ll> a;
		for(int j = 0; j < (N + 1) / 2; j++){
			MinMax(L + 1, R - 1, &L, &R);
			if(L != -1) a.insert(L); if(R != -1) a.insert(R);
		}
		for(auto it = a.begin(); it != a.end(); it++){
			if(next(it) != a.end()) ans = max(ans, *next(it) - *it);
		}
	}else{
		ll L, R;
		MinMax(0, 1e18, &L, &R);
		ll tg = 1 + (R - L - 1) / (N - 1);
		set<ll> a; a.insert(L); a.insert(R);
		for(ll i = L + 1; i < R; i += tg){
			ll ll, rr;
			MinMax(i, min(R - 1, i + tg - 1), &ll, &rr);
			if(ll != -1) a.insert(ll); if(rr != -1) a.insert(rr);
		}
		for(auto it = a.begin(); it != a.end(); it++){
			if(next(it) != a.end()) ans = max(ans, *next(it) - *it);
		}
	}
	return ans;
}

Compilation message (stderr)

gap.cpp: In function 'long long int findGap(int, int)':
gap.cpp:13:4: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   13 |    if(L != -1) a.insert(L); if(R != -1) a.insert(R);
      |    ^~
gap.cpp:13:29: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   13 |    if(L != -1) a.insert(L); if(R != -1) a.insert(R);
      |                             ^~
gap.cpp:26:4: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   26 |    if(ll != -1) a.insert(ll); if(rr != -1) a.insert(rr);
      |    ^~
gap.cpp:26:31: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   26 |    if(ll != -1) a.insert(ll); if(rr != -1) a.insert(rr);
      |                               ^~

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