Submission #155006

#	Time	Username	Problem	Language	Result	Execution time	Memory
155006		TadijaSebez	Carnival (CEOI14_carnival)	C++11	100 / 100	15 ms	396 KiB

carnival

#include <bits/stdc++.h>
using namespace std;
#define pb push_back
int Ask(vector<int> v, int n)
{
	printf("%i ",n);
	for(int i=0;i<n;i++) printf("%i ",v[i]);
	printf("\n");
	fflush(stdout);
	int b;scanf("%i",&b);
	return b;
}
int Ask(vector<int> v, int n, int x)
{
	printf("%i ",n+1);
	for(int i=0;i<n;i++) printf("%i ",v[i]);
	printf("%i\n",x);
	fflush(stdout);
	int b;scanf("%i",&b);
	return b;
}
const int N=155;
int col[N];
int main()
{
	int n;
	scanf("%i",&n);
	vector<int> all,fir,work;
	for(int i=1;i<=n;i++) all.pb(i);
	int pre=0;
	for(int i=1;i<=n;i++)
	{
		int now=Ask(all,i);
		if(now!=pre) fir.pb(i),col[i]=fir.size();
		else work.pb(i);
		pre=now;
	}
	for(int x:work)
	{
		int top=fir.size(),bot=1,mid,ans=fir.size();
		while(top>=bot)
		{
			mid=top+bot>>1;
			if(Ask(fir,mid,x)==mid) top=mid-1,ans=mid;
			else bot=mid+1;
		}
		col[x]=ans;
	}
	printf("0 ");
	for(int i=1;i<=n;i++) printf("%i ",col[i]);
	printf("\n");
	fflush(stdout);
	return 0;
}

Compilation message (stderr)

carnival.cpp: In function 'int main()':
carnival.cpp:43:11: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
    mid=top+bot>>1;
        ~~~^~~~
carnival.cpp: In function 'int Ask(std::vector<int>, int)':
carnival.cpp:10:13: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  int b;scanf("%i",&b);
        ~~~~~^~~~~~~~~
carnival.cpp: In function 'int Ask(std::vector<int>, int, int)':
carnival.cpp:19:13: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  int b;scanf("%i",&b);
        ~~~~~^~~~~~~~~
carnival.cpp: In function 'int main()':
carnival.cpp:27:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%i",&n);
  ~~~~~^~~~~~~~~

• Subtask 1: 20 / 20
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 20 / 20
• Subtask 5: 20 / 20