Submission #629757

#	Time	Username	Problem	Language	Result	Execution time	Memory
629757		aebov	Cloud Computing (CEOI18_clo)	C++17	0 / 100	1 ms	468 KiB

clo

#include<iostream>
#include<algorithm>
#include<bitset>
#include<vector>
#define pb push_back
using namespace std;
 
long long int n,a,b,y[21];
long long int inf = (long long)1e17+17;
long long int ans=inf;
 
long long int f(int x)
{
	if(__builtin_popcount(x)<a-1)return inf;
	vector<int> pos;
	for(int i=0;i<b;i++)if((x>>i)%2==1)pos.pb(i);
	pos.pb(n-1);
	long long int ret=0LL;
	long long int tm2=0LL;
	for(int i=0;i<=pos[0];i++)tm2+=y[i];
	ret|=tm2;
	for(int i=1;i<pos.size();i++){
		tm2=0;
		for(int j=pos[i-1]+1;j<=pos[i];j++)tm2+=y[j];
		ret|=tm2;
	}
	//bitset<5> tb = x;
	//cout<<tb<< " "<<ret<<endl;
	return ret;
}
int main()
{
	ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
	cin>>n>>a>>b;
	for(int i=0;i<n;i++)cin>>y[i];
 
	for(int i=0;i<(1<<b);i++){
		ans=min(ans,f(i));
	}
	cout<<ans<<endl;
}

Compilation message (stderr)

clo.cpp: In function 'long long int f(int)':
clo.cpp:22:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 |  for(int i=1;i<pos.size();i++){
      |              ~^~~~~~~~~~~

• Subtask 1: 0 / 18
• Subtask 2: 0 / 18
• Subtask 3: 0 / 18
• Subtask 4: 0 / 18
• Subtask 5: 0 / 18
• Subtask 6: 0 / 10