oj.uz

Submission #63190

# Submission time Handle Problem Language Result Execution time Memory
63190 2018-08-01T05:14:20 Z 정원준(#1835) Paths (BOI18_paths) C++11
53 / 100
 3000 ms 95712 KB 
#include <bits/stdc++.h>
#define L long long

using namespace std;

L n,m,k,ans;
L dp[300030][32];
L col[300030];
vector<L>bit[6];
vector<L>v[300030];

L bits(L x){
	L ret=0;
	while(x)
	{
		ret+=x%2;
		x/=2;
	}
	return ret;
}


int main()
{
	scanf("%lld %lld %lld",&n,&m,&k);
	L i,bi,binum,j,k;
	for(i=1;i<32;i++)
	{
		bit[bits(i)].push_back(i);
	}
	for(i=1;i<=n;i++)
	{
		scanf("%lld",&col[i]);
		col[i]--;
	}
	for(i=1;i<=m;i++)
	{
		L s,e;
		scanf("%lld %lld",&s,&e);
		v[s].push_back(e);
		v[e].push_back(s);
	}
	for(i=1;i<=n;i++)
	{
		dp[i][(1<<col[i])]=1;
		ans--;
	}
	for(i=1;i<=5;i++)
	{
		//printf("%lld\n",i);
		for(binum=0;binum<bit[i].size();binum++)
		{
			bi=bit[i][binum];
			//printf("%lld ",bi);
			for(j=1;j<=n;j++)
			{
				ans+=dp[j][bi];
				for(k=0;k<v[j].size();k++)
				{
					if(!(bi&(1<<col[v[j][k]])))
					{
						dp[v[j][k]][bi|(1<<col[v[j][k]])]+=dp[j][bi];
					}
				}
			}
		}
		//puts("");
	}
	/*for(i=0;i<32;i++)
	{
		for(j=1;j<=n;j++)
		{
			printf("%lld ",dp[j][i]);
		}
		puts("");
	}*/
	printf("%lld",ans);
}

Compilation message

paths.cpp: In function 'int main()':
paths.cpp:51:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(binum=0;binum<bit[i].size();binum++)
               ~~~~~^~~~~~~~~~~~~~
paths.cpp:58:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(k=0;k<v[j].size();k++)
             ~^~~~~~~~~~~~
paths.cpp:25:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld %lld %lld",&n,&m,&k);
  ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
paths.cpp:33:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld",&col[i]);
   ~~~~~^~~~~~~~~~~~~~~~
paths.cpp:39:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld %lld",&s,&e);
   ~~~~~^~~~~~~~~~~~~~~~~~~

Subtask #1
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 7416 KB Output is correct
2 Correct 9 ms 7524 KB Output is correct
3 Correct 8 ms 7524 KB Output is correct
4 Correct 9 ms 7668 KB Output is correct
5 Correct 9 ms 7668 KB Output is correct
6 Correct 9 ms 7668 KB Output is correct
7 Correct 10 ms 7744 KB Output is correct
8 Correct 10 ms 7744 KB Output is correct
9 Correct 9 ms 7744 KB Output is correct
10 Correct 9 ms 7744 KB Output is correct

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 299 ms 16132 KB Output is correct
2 Correct 227 ms 16132 KB Output is correct
3 Execution timed out 3045 ms 95712 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #3
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 7416 KB Output is correct
2 Correct 9 ms 7524 KB Output is correct
3 Correct 8 ms 7524 KB Output is correct
4 Correct 9 ms 7668 KB Output is correct
5 Correct 9 ms 7668 KB Output is correct
6 Correct 9 ms 7668 KB Output is correct
7 Correct 10 ms 7744 KB Output is correct
8 Correct 10 ms 7744 KB Output is correct
9 Correct 9 ms 7744 KB Output is correct
10 Correct 9 ms 7744 KB Output is correct
11 Correct 299 ms 16132 KB Output is correct
12 Correct 227 ms 16132 KB Output is correct
13 Execution timed out 3045 ms 95712 KB Time limit exceeded
14 Halted 0 ms 0 KB -

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 95712 KB Output is correct
2 Correct 70 ms 95712 KB Output is correct
3 Correct 87 ms 95712 KB Output is correct
4 Correct 757 ms 95712 KB Output is correct
5 Correct 283 ms 95712 KB Output is correct
6 Correct 520 ms 95712 KB Output is correct
7 Correct 76 ms 95712 KB Output is correct
8 Correct 671 ms 95712 KB Output is correct
9 Correct 289 ms 95712 KB Output is correct
10 Correct 506 ms 95712 KB Output is correct
11 Correct 316 ms 95712 KB Output is correct
12 Correct 291 ms 95712 KB Output is correct
13 Correct 289 ms 95712 KB Output is correct
14 Correct 527 ms 95712 KB Output is correct
15 Correct 605 ms 95712 KB Output is correct
16 Correct 10 ms 95712 KB Output is correct
17 Correct 10 ms 95712 KB Output is correct
18 Correct 9 ms 95712 KB Output is correct
19 Correct 10 ms 95712 KB Output is correct
20 Correct 9 ms 95712 KB Output is correct
21 Correct 10 ms 95712 KB Output is correct
22 Correct 8 ms 95712 KB Output is correct
23 Correct 9 ms 95712 KB Output is correct
24 Correct 10 ms 95712 KB Output is correct
25 Correct 11 ms 95712 KB Output is correct