Submission #661202

#	Time	Username	Problem	Language	Result	Execution time	Memory
661202		ktkerem	Colors (BOI20_colors)	C++17	0 / 100	1 ms	208 KiB

Colors

/*#pragma GCC target ("avx2")
#pragma GCC optimize ("O3")
#pragma GCC optimize("Ofast")
#pragma GCC optimize ("unroll-loops")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")/**/
#include<bits/stdc++.h>
/**/
//typedef int ll;
typedef long long ll;
typedef unsigned long long ull;
typedef std::string str;
/*typedef __int128 vll;
typedef unsigned __int128 uvll;*/
#define llll std::pair<ll , ll>
#define pb push_back
#define pf push_front
#define halo cout << "hello\n"
#define fi first
#define sec second
#define all(a) a.begin() , a.end()
const ll limit = 1e14 + 7; 
const ll ous = 1e5 + 7;
const ll dx[4] = {-1 , 0 , 1 , 0} , dy[4] = {0,1,0,-1};
ll n , m;std::vector<ll> ar;
void solve(){
    std::cin >> n;
    ll rv = 0;
    std::cout << "? " << 1 << std::endl;
    ll x;std::cin >> x;
    ll ls = 1;
    for(ll i = n-1;0<=i;i--){
        if(rv == 0){
            ls += i;
        }
        else{
            ls -= i;
        }
        std::cout << "? " << ls << std::endl;
        rv ^= 1;
        std::cin >> x;
        if(x == 0){
            std::cout << "= " << i + 1 << std::endl;
            return;
        }
    }
    return;/**/
}
signed main(){
    ll t=1;
    //std::cin >> t;
    ll o = 1;
    while(t--){ 
        //cout << "Case " << o++ << ":\n";
        solve();
    }
    return 0;
}/**/

Compilation message (stderr)

Colors.cpp:5:78: warning: "/*" within comment [-Wcomment]
    5 | #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")/**/
      |                                                                               
Colors.cpp: In function 'int main()':
Colors.cpp:51:8: warning: unused variable 'o' [-Wunused-variable]
   51 |     ll o = 1;
      |        ^

• Subtask 1: 0 / 9
• Subtask 2: 0 / 13
• Subtask 3: 0 / 21
• Subtask 4: 0 / 24
• Subtask 5: 0 / 33