oj.uz

Submission #157743

# Submission time Handle Problem Language Result Execution time Memory
157743 2019-10-12T19:25:39 Z TadijaSebez Sushi (JOI16_sushi) C++11
5 / 100
 12000 ms 31296 KB 
#include <bits/stdc++.h>
using namespace std;
const int N=400050;
const int S=2;
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 70 ms 9976 KB Output is correct
2 Correct 69 ms 9848 KB Output is correct
3 Correct 70 ms 9848 KB Output is correct
4 Correct 68 ms 9848 KB Output is correct
5 Correct 69 ms 9848 KB Output is correct
6 Correct 70 ms 9848 KB Output is correct
7 Correct 74 ms 9952 KB Output is correct
8 Correct 74 ms 9848 KB Output is correct
9 Correct 70 ms 10104 KB Output is correct
10 Correct 69 ms 9848 KB Output is correct
11 Correct 80 ms 9876 KB Output is correct
12 Correct 78 ms 9876 KB Output is correct
13 Correct 81 ms 9940 KB Output is correct
14 Correct 125 ms 9848 KB Output is correct
15 Correct 121 ms 9848 KB Output is correct
16 Correct 12 ms 9848 KB Output is correct
17 Correct 10 ms 9720 KB Output is correct
18 Correct 10 ms 9720 KB Output is correct
19 Correct 11 ms 9720 KB Output is correct
20 Correct 10 ms 9720 KB Output is correct
21 Correct 10 ms 9720 KB Output is correct
22 Correct 12 ms 9720 KB Output is correct

Subtask #2
0 / 15.0

# Verdict Execution time Memory Grader output
1 Execution timed out 12030 ms 31296 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 70 ms 9976 KB Output is correct
2 Correct 69 ms 9848 KB Output is correct
3 Correct 70 ms 9848 KB Output is correct
4 Correct 68 ms 9848 KB Output is correct
5 Correct 69 ms 9848 KB Output is correct
6 Correct 70 ms 9848 KB Output is correct
7 Correct 74 ms 9952 KB Output is correct
8 Correct 74 ms 9848 KB Output is correct
9 Correct 70 ms 10104 KB Output is correct
10 Correct 69 ms 9848 KB Output is correct
11 Correct 80 ms 9876 KB Output is correct
12 Correct 78 ms 9876 KB Output is correct
13 Correct 81 ms 9940 KB Output is correct
14 Correct 125 ms 9848 KB Output is correct
15 Correct 121 ms 9848 KB Output is correct
16 Correct 12 ms 9848 KB Output is correct
17 Correct 10 ms 9720 KB Output is correct
18 Correct 10 ms 9720 KB Output is correct
19 Correct 11 ms 9720 KB Output is correct
20 Correct 10 ms 9720 KB Output is correct
21 Correct 10 ms 9720 KB Output is correct
22 Correct 12 ms 9720 KB Output is correct
23 Execution timed out 12030 ms 31296 KB Time limit exceeded
24 Halted 0 ms 0 KB -