Submission #951123

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
951123	2024-03-21 07:36:50	koukirocks	Colors (BOI20_colors)	C++17	22 / 100	1 ms	756 KiB

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#include <bits/stdc++.h>
#define speed ios_base::sync_with_stdio(0); cin.tie(0)
#define all(x) (x).begin(),(x).end()
#define F first
#define S second
 
using namespace std;
typedef long long ll;
typedef double db;
typedef long double ldb;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
 
const ll MAX=2e5+10,P=998244353;
const ll INF=0x3f3f3f3f,oo=0x3f3f3f3f3f3f3f3f;
int n;
int main() {
  speed;
  cin>>n;
  if (n<=64) {
    int now=1;
    int x;
    cout<<"? 1\n"<<flush;
    cin>>x;
    for (int i=1;i<n;i++) {
      now+=(i&1?1:-1)*(n-i);
      cout<<"? "<<now<<"\n"<<flush;
      cin>>x;
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

Colors.cpp: In function 'int main()':
Colors.cpp:38:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   38 |   int now=n+1>>1;
      |           ~^~
Colors.cpp:45:8: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   45 |    n=(n+1>>1)-1;
      |       ~^~
Colors.cpp:59:8: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   59 |    n=(n+1>>1)-1;
      |       ~^~

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