Submission #40521

#	Time	Username	Problem	Language	Result	Execution time	Memory
40521		Pajaraja	Bank (IZhO14_bank)	C++14	100 / 100	649 ms	25280 KiB

bank

#include <bits/stdc++.h>
using namespace std;
int a[20],b[20];
bool ma[22][1100000];
vector<int> v[22];
vector<int> s[20007];
int main()
{
	int n,m;
	scanf("%d%d",&n,&m);
	for(int i=1;i<=n;i++) scanf("%d",&a[i]);
	for(int i=0;i<m;i++) scanf("%d",&b[i]);
	v[0].push_back(0);
	for(int i=0;i<(1<<m);i++)
	{
		int ma=i;
		int sum=0;
		for(int j=0;j<m;j++)
		{
			if(ma%2==1) sum+=b[j];
			ma/=2;
		}
	    s[sum].push_back(i);
	}
	for(int i=1;i<=n;i++)
	{
		for(int j=0;j<s[a[i]].size();j++) for(int k=0;k<v[i-1].size();k++) if(((v[i-1][k]^s[a[i]][j]) == (v[i-1][k]|s[a[i]][j])) && !ma[i][v[i-1][k] xor s[a[i]][j]])
		{
			v[i].push_back(s[a[i]][j] xor v[i-1][k]);
			ma[i][s[a[i]][j] xor v[i-1][k]]=true;
		}
	}
	if(v[n].size()>0) printf("YES");
	else printf("NO");
}

Compilation message (stderr)

bank.cpp: In function 'int main()':
bank.cpp:27:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int j=0;j<s[a[i]].size();j++) for(int k=0;k<v[i-1].size();k++) if(((v[i-1][k]^s[a[i]][j]) == (v[i-1][k]|s[a[i]][j])) && !ma[i][v[i-1][k] xor s[a[i]][j]])
               ~^~~~~~~~~~~~~~~
bank.cpp:27:50: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int j=0;j<s[a[i]].size();j++) for(int k=0;k<v[i-1].size();k++) if(((v[i-1][k]^s[a[i]][j]) == (v[i-1][k]|s[a[i]][j])) && !ma[i][v[i-1][k] xor s[a[i]][j]])
                                                 ~^~~~~~~~~~~~~~
bank.cpp:10:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d",&n,&m);
  ~~~~~^~~~~~~~~~~~~~
bank.cpp:11:29: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i=1;i<=n;i++) scanf("%d",&a[i]);
                        ~~~~~^~~~~~~~~~~~
bank.cpp:12:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i=0;i<m;i++) scanf("%d",&b[i]);
                       ~~~~~^~~~~~~~~~~~

• Subtask 1: 19 / 19
• Subtask 2: 25 / 25
• Subtask 3: 27 / 27
• Subtask 4: 29 / 29