oj.uz

Submission #157738

# Submission time Handle Problem Language Result Execution time Memory
157738 2019-10-12T19:19:54 Z TadijaSebez Sushi (JOI16_sushi) C++11
5 / 100
 12000 ms 21652 KB 
#include <bits/stdc++.h>
using namespace std;
const int N=400050;
const int S=200;
const int M=N/S+1;
const int Q=25050;
multiset<pair<int,int>> st[M];
int a[N],n,q;
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;
	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;}
void BreakBlock(int B)
{
	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:62:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%i %i",&n,&q);
  ~~~~~^~~~~~~~~~~~~~~
sushi.cpp:63:28: 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:68:8: 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 221 ms 504 KB Output is correct
2 Correct 221 ms 504 KB Output is correct
3 Correct 224 ms 648 KB Output is correct
4 Correct 228 ms 596 KB Output is correct
5 Correct 232 ms 692 KB Output is correct
6 Correct 226 ms 632 KB Output is correct
7 Correct 170 ms 504 KB Output is correct
8 Correct 171 ms 604 KB Output is correct
9 Correct 224 ms 588 KB Output is correct
10 Correct 222 ms 608 KB Output is correct
11 Correct 183 ms 504 KB Output is correct
12 Correct 184 ms 504 KB Output is correct
13 Correct 199 ms 576 KB Output is correct
14 Correct 293 ms 504 KB Output is correct
15 Correct 291 ms 632 KB Output is correct
16 Correct 84 ms 504 KB Output is correct
17 Correct 4 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 380 KB Output is correct
21 Correct 1 ms 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct

Subtask #2
0 / 15.0

# Verdict Execution time Memory Grader output
1 Execution timed out 12042 ms 21652 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 221 ms 504 KB Output is correct
2 Correct 221 ms 504 KB Output is correct
3 Correct 224 ms 648 KB Output is correct
4 Correct 228 ms 596 KB Output is correct
5 Correct 232 ms 692 KB Output is correct
6 Correct 226 ms 632 KB Output is correct
7 Correct 170 ms 504 KB Output is correct
8 Correct 171 ms 604 KB Output is correct
9 Correct 224 ms 588 KB Output is correct
10 Correct 222 ms 608 KB Output is correct
11 Correct 183 ms 504 KB Output is correct
12 Correct 184 ms 504 KB Output is correct
13 Correct 199 ms 576 KB Output is correct
14 Correct 293 ms 504 KB Output is correct
15 Correct 291 ms 632 KB Output is correct
16 Correct 84 ms 504 KB Output is correct
17 Correct 4 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 380 KB Output is correct
21 Correct 1 ms 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Execution timed out 12042 ms 21652 KB Time limit exceeded
24 Halted 0 ms 0 KB -