oj.uz

Submission #157742

# Submission time Handle Problem Language Result Execution time Memory
157742 2019-10-12T19:24:30 Z TadijaSebez Sushi (JOI16_sushi) C++11
5 / 100
 12000 ms 21600 KB 
#include <bits/stdc++.h>
using namespace std;
const int N=400050;
const int S=100;
const int M=N/S+1;
const int Q=25050;
multiset<pair<int,int>> st[M];
int a[N],n,q,ok[M];
bool mark[N];
int Push(int B, int x)
{
	st[B].insert({x,0});
	int p;tie(x,p)=*st[B].rbegin();
	st[B].erase(--st[B].end());
	if(p) mark[-p]=1,ok[B]=0;
	return x;
}
void BuildBlock(int B, int l, int r){ for(int i=l;i<=r;i++) st[B].insert({a[i],-i}),mark[i]=0;ok[B]=1;}
void BreakBlock(int B)
{
	if(ok[B]) st[B].clear();
	else
	{
		int l=B*S,r=min((B+1)*S,n)-1;
		for(int i=r;i>=l;i--)
		{
			if(mark[i])
			{
				int x,y;tie(x,y)=*st[B].rbegin();
				st[B].erase(--st[B].end());
				a[i]=x;
				if(y) mark[-y]=1;
			}
			else
			{
				st[B].erase(st[B].find({a[i],-i}));
			}
		}
	}
}
int Push(int B, int l, int r, int x)
{
	BreakBlock(B);
	for(int i=l;i<=r;i++) if(a[i]>x) swap(a[i],x);
	BuildBlock(B,B*S,min((B+1)*S,n)-1);
	return x;
}
void BuildAll(){ for(int l=0;l<n;l+=S) BuildBlock(l/S,l,min(l+S,n)-1);}
int Query(int l, int r, int x)
{
	int L=l/S,R=r/S;
	if(L==R)
	{
		x=Push(L,l,r,x);
	}
	else
	{
		x=Push(L,l,L*S+S-1,x);
		for(int i=L+1;i<R;i++) x=Push(i,x);
		x=Push(R,R*S,r,x);
	}
	return x;
}
int main()
{
	scanf("%i %i",&n,&q);
	for(int i=0;i<n;i++) scanf("%i",&a[i]);
	BuildAll();
	while(q--)
	{
		int l,r,x;
		scanf("%i %i %i",&l,&r,&x);
		l--;r--;
		if(l<=r) x=Query(l,r,x);
		else x=Query(0,r,Query(l,n-1,x));
		printf("%i\n",x);
	}
	return 0;
}

Compilation message

sushi.cpp: In function 'int main()':
sushi.cpp:66:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%i %i",&n,&q);
  ~~~~~^~~~~~~~~~~~~~~
sushi.cpp:67:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i=0;i<n;i++) scanf("%i",&a[i]);
                       ~~~~~^~~~~~~~~~~~
sushi.cpp:72:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%i %i %i",&l,&r,&x);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 81 ms 760 KB Output is correct
2 Correct 79 ms 632 KB Output is correct
3 Correct 80 ms 632 KB Output is correct
4 Correct 79 ms 760 KB Output is correct
5 Correct 78 ms 672 KB Output is correct
6 Correct 81 ms 632 KB Output is correct
7 Correct 59 ms 632 KB Output is correct
8 Correct 60 ms 760 KB Output is correct
9 Correct 82 ms 632 KB Output is correct
10 Correct 81 ms 760 KB Output is correct
11 Correct 75 ms 632 KB Output is correct
12 Correct 78 ms 760 KB Output is correct
13 Correct 82 ms 676 KB Output is correct
14 Correct 94 ms 632 KB Output is correct
15 Correct 99 ms 696 KB Output is correct
16 Correct 27 ms 632 KB Output is correct
17 Correct 2 ms 504 KB Output is correct
18 Correct 2 ms 504 KB Output is correct
19 Correct 2 ms 504 KB Output is correct
20 Correct 2 ms 508 KB Output is correct
21 Correct 2 ms 504 KB Output is correct
22 Correct 2 ms 504 KB Output is correct

Subtask #2
0 / 15.0

# Verdict Execution time Memory Grader output
1 Execution timed out 12077 ms 21600 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 81 ms 760 KB Output is correct
2 Correct 79 ms 632 KB Output is correct
3 Correct 80 ms 632 KB Output is correct
4 Correct 79 ms 760 KB Output is correct
5 Correct 78 ms 672 KB Output is correct
6 Correct 81 ms 632 KB Output is correct
7 Correct 59 ms 632 KB Output is correct
8 Correct 60 ms 760 KB Output is correct
9 Correct 82 ms 632 KB Output is correct
10 Correct 81 ms 760 KB Output is correct
11 Correct 75 ms 632 KB Output is correct
12 Correct 78 ms 760 KB Output is correct
13 Correct 82 ms 676 KB Output is correct
14 Correct 94 ms 632 KB Output is correct
15 Correct 99 ms 696 KB Output is correct
16 Correct 27 ms 632 KB Output is correct
17 Correct 2 ms 504 KB Output is correct
18 Correct 2 ms 504 KB Output is correct
19 Correct 2 ms 504 KB Output is correct
20 Correct 2 ms 508 KB Output is correct
21 Correct 2 ms 504 KB Output is correct
22 Correct 2 ms 504 KB Output is correct
23 Execution timed out 12077 ms 21600 KB Time limit exceeded
24 Halted 0 ms 0 KB -