Submission #543686

#	Time	Username	Problem	Language	Result	Execution time	Memory
543686		Sho10	Lost in the cycle (IOI19_cycle)	C++17	100 / 100	1 ms	300 KiB

cycle

#include <bits/stdc++.h> //Andrei Alexandru a.k.a Sho
#include "cycle.h"
using ll=long long;
using ld=long double;
int const INF=1000000005;
ll const LINF=1000000000000000005;
ll const mod=1000000007;
ld const PI=3.14159265359;
ll const MAX_N=3e5+5;
#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#define f first
#define s second
#define pb push_back
#define mp make_pair
#define endl '\n'
#define CODE_START  ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
using namespace std;
void escape(int n){
ll st=0;
if(n==2){
    jump(1);
    return;
}
if(n==3){
    if(!jump(2)){
        jump(2);
    }
    return;
}
ll x=jump((n+1)/2);
if(x==0){
    jump((n+1)/2);
}
ll l=1,r=(n-1),res=0,last=0;
while(l<=r){
ll mid=(l+r)/2;
ll x=jump((n-mid+last)%n);
if(x==0){
res=mid;
r=mid-1;
}else l=mid+1;
last=mid;
}
jump((n+last)%n);
jump((n-res+n)%n);
jump((n)/2+1);
}
/*
int32_t main(){
CODE_START;
#ifdef LOCAL
    ifstream cin("input.txt");
#endif
*/

Compilation message (stderr)

cycle.cpp: In function 'void escape(int)':
cycle.cpp:20:4: warning: unused variable 'st' [-Wunused-variable]
   20 | ll st=0;
      |    ^~

• Subtask 1: 11 / 11
• Subtask 2: 33 / 33
• Subtask 3: 56 / 56