oj.uz

Submission #173974

# Submission time Handle Problem Language Result Execution time Memory
173974 2020-01-05T23:10:58 Z CaroLinda Detecting Molecules (IOI16_molecules) C++14
0 / 100
 3 ms 1016 KB 
#include "molecules.h"
#include <bits/stdc++.h>
 
#define debug printf
#define lp(i,a,b) for(int i = a ; i < b ; i++ )
#define ff first
#define ss second
#define pb push_back
#define mk make_pair
#define ll long long
#define sz size()
#define pii pair<int,int>
#define all(x) x.begin(),x.end()
#define tiii tuple<int,int,int>
#define mkt make_tuple
 
const int MAX = 10010 ;
 
using namespace std ;
 
bool dp[MAX] ;
vector<int> res , aux[MAX] ;

bool find(int idx, int num )
{

	int l = 0 , r = (int)(aux[idx].sz) - 1 , mid ;

	while(l<=r)
	{
		mid = (l+r)>>1 ;
		if( aux[idx][mid] < num )
			l = mid + 1 ;
		else if( aux[idx][mid] > num )
			r = mid - 1 ;
		else return true ;
	}

	return aux[idx][mid] == num ;

}
 
vector<int> find_subset(int l, int u, vector<int> w) 
{
    
	int cnt = 1 ;
 
	dp[0] = true ;
 
	for(int i : w)
	{

		for(int j = u ; j >= 0 ; j-- )
		{
 
			if(!dp[j]) continue ;

			if( j + i <= u && !dp[j+i] )
			{
				dp[j+i]=true ;
				aux[cnt].pb(j+i) ;
			}
		}
 
		cnt ++ ;
 
	}
		
 
	cnt -- ;

	lp(i,1,cnt+1) reverse(all(aux[i])) ;
 
	int ok = -1 ;
 
	lp(i,l,u+1)
		if( dp[i] ) ok = i ;
 
	if( ok == -1 ) return res ;
 
	for(int i = cnt ; i > 0 ; i-- )
		if( w[i-1] <= ok && find(i,ok) )
		{
			res.pb(i-1) ;
			ok -= w[i-1] ;
		}
 
	sort(all(res));
 
	return res ;
 
}

Compilation message

molecules.cpp: In function 'bool find(int, int)':
molecules.cpp:27:43: warning: 'mid' may be used uninitialized in this function [-Wmaybe-uninitialized]
  int l = 0 , r = (int)(aux[idx].sz) - 1 , mid ;
                                           ^~~

Subtask #1
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 632 KB OK (n = 1, answer = NO)
2 Correct 2 ms 632 KB OK (n = 1, answer = NO)
3 Correct 2 ms 632 KB OK (n = 1, answer = YES)
4 Correct 2 ms 504 KB OK (n = 2, answer = YES)
5 Runtime error 3 ms 1016 KB Execution killed with signal 11 (could be triggered by violating memory limits)
6 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 3 ms 1016 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #3
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 632 KB OK (n = 1, answer = NO)
2 Correct 2 ms 632 KB OK (n = 1, answer = NO)
3 Correct 2 ms 632 KB OK (n = 1, answer = YES)
4 Correct 2 ms 504 KB OK (n = 2, answer = YES)
5 Runtime error 3 ms 1016 KB Execution killed with signal 11 (could be triggered by violating memory limits)
6 Halted 0 ms 0 KB -

Subtask #4
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 632 KB OK (n = 1, answer = NO)
2 Correct 2 ms 632 KB OK (n = 1, answer = NO)
3 Correct 2 ms 632 KB OK (n = 1, answer = YES)
4 Correct 2 ms 504 KB OK (n = 2, answer = YES)
5 Runtime error 3 ms 1016 KB Execution killed with signal 11 (could be triggered by violating memory limits)
6 Halted 0 ms 0 KB -

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 632 KB OK (n = 1, answer = NO)
2 Correct 2 ms 632 KB OK (n = 1, answer = NO)
3 Correct 2 ms 632 KB OK (n = 1, answer = YES)
4 Correct 2 ms 504 KB OK (n = 2, answer = YES)
5 Runtime error 3 ms 1016 KB Execution killed with signal 11 (could be triggered by violating memory limits)
6 Halted 0 ms 0 KB -

Subtask #6
0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 632 KB OK (n = 1, answer = NO)
2 Correct 2 ms 632 KB OK (n = 1, answer = NO)
3 Correct 2 ms 632 KB OK (n = 1, answer = YES)
4 Correct 2 ms 504 KB OK (n = 2, answer = YES)
5 Runtime error 3 ms 1016 KB Execution killed with signal 11 (could be triggered by violating memory limits)
6 Halted 0 ms 0 KB -