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Submission #964487

# Submission time Handle Problem Language Result Execution time Memory
964487 2024-04-17T01:36:16 Z pcc The Potion of Great Power (CEOI20_potion) C++17
70 / 100
 3000 ms 151284 KB 
#include <bits/stdc++.h>
using namespace std;

#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,popcnt,sse4")
#define pii pair<int,int>
#define fs first
#define sc second
#define ll long long

const int mxn = 2e5+10;

int nid[mxn*100],val[mxn*100];
int vcnt = 0;

struct node{
	int head;
	int pl,pr;
};

int add(int now,int v){
	vcnt++;
	nid[vcnt] = now;
	val[vcnt] = v;
	return vcnt;
}

struct SEG{
#define mid ((l+r)>>1)
#define ls seg[now].pl
#define rs seg[now].pr
	node seg[mxn*50];
	int ppp = 0;
	SEG(){}
	int newnode(){
		return ++ppp;
	}
	int modify(int now,int l,int r,int s,int e,int v){
		if(!now)now = newnode();
		if(l>=s&&e>=r){
			seg[now].head = add(seg[now].head,v);
			return now;
		}
		if(mid>=s)ls = modify(ls,l,mid,s,e,v);
		if(mid<e)rs = modify(rs,mid+1,r,s,e,v);
		return now;
	}
	vector<int> re;
	void getval(int now,int l,int r,int p){
		if(!now)return;
		for(int i = seg[now].head;i;i = nid[i])re.push_back(val[i]);
		if(l == r)return;
		if(mid>=p)getval(ls,l,mid,p);
		else getval(rs,mid+1,r,p);
		return;
	}
#undef ls
#undef rs
#undef mid
};

SEG seg;
int arr[mxn],N,D;
int rt[mxn];

void init(int NN, int DD, int H[]) {
	N = NN,D = DD;
	for(int i = 0;i<N;i++){
		arr[i] = H[i];
	}
	return;
}

void curseChanges(int U, int A[], int B[]) {
	map<ll,int> mp;
	for(int i = 0;i<U;i++){
		pii p = {A[i],B[i]};
		if(p.fs>p.sc)swap(p.fs,p.sc);
		ll h = 1ll*p.fs*mxn+p.sc;
		if(mp.find(h) != mp.end()){
			rt[p.fs] = seg.modify(rt[p.fs],0,mxn-1,mp[h]+1,i,arr[p.sc]);
			rt[p.sc] = seg.modify(rt[p.sc],0,mxn-1,mp[h]+1,i,arr[p.fs]);
			mp.erase(h);
		}
		else{
			mp[h] = i;
		}
	}
	for(auto &i:mp){
		pii p = pii(i.fs/mxn,i.fs%mxn);
		rt[p.fs] = seg.modify(rt[p.fs],0,mxn-1,i.sc+1,mxn-1,arr[p.sc]);
		rt[p.sc] = seg.modify(rt[p.sc],0,mxn-1,i.sc+1,mxn-1,arr[p.fs]);
	}
	return;
}

int question(int x, int y, int v) {
	seg.re.clear();seg.getval(rt[x],0,mxn-1,v);
	auto ta = seg.re;
	seg.re.clear();seg.getval(rt[y],0,mxn-1,v);
	auto tb = seg.re;
	assert(ta.size()<=500);
	assert(tb.size()<=500);
	sort(ta.begin(),ta.end());
	sort(tb.begin(),tb.end());
	int pt = 0;
	int ans = 1e9;
	for(auto &i:ta){
		while(pt != tb.size()&&tb[pt]<i)pt++;
		if(pt != tb.size())ans = min(ans,abs(i-tb[pt]));
		if(pt-1>=0)ans = min(ans,abs(i-tb[pt-1]));
	}
	return ans;
}

Compilation message

potion.cpp: In function 'int question(int, int, int)':
potion.cpp:109:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  109 |   while(pt != tb.size()&&tb[pt]<i)pt++;
      |         ~~~^~~~~~~~~~~~
potion.cpp:110:9: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  110 |   if(pt != tb.size())ans = min(ans,abs(i-tb[pt]));
      |      ~~~^~~~~~~~~~~~

Subtask #1
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6488 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6488 KB Output is correct
2 Correct 3 ms 6488 KB Output is correct
3 Correct 2 ms 6488 KB Output is correct
4 Correct 12 ms 7456 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 401 ms 151284 KB Output is correct
2 Correct 387 ms 151156 KB Output is correct
3 Correct 202 ms 57928 KB Output is correct
4 Correct 1821 ms 98876 KB Output is correct
5 Correct 787 ms 128144 KB Output is correct
6 Correct 2417 ms 113044 KB Output is correct
7 Correct 561 ms 124124 KB Output is correct

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 380 ms 151176 KB Output is correct
2 Correct 1444 ms 77488 KB Output is correct
3 Correct 1405 ms 116300 KB Output is correct
4 Correct 2350 ms 112960 KB Output is correct
5 Correct 477 ms 148800 KB Output is correct
6 Correct 2330 ms 113100 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 50 ms 13912 KB Output is correct
2 Correct 68 ms 10252 KB Output is correct
3 Correct 89 ms 9568 KB Output is correct
4 Correct 606 ms 11840 KB Output is correct
5 Correct 609 ms 13156 KB Output is correct
6 Correct 88 ms 11572 KB Output is correct
7 Correct 448 ms 10348 KB Output is correct

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6488 KB Output is correct
2 Correct 2 ms 6488 KB Output is correct
3 Correct 3 ms 6488 KB Output is correct
4 Correct 2 ms 6488 KB Output is correct
5 Correct 12 ms 7456 KB Output is correct
6 Correct 401 ms 151284 KB Output is correct
7 Correct 387 ms 151156 KB Output is correct
8 Correct 202 ms 57928 KB Output is correct
9 Correct 1821 ms 98876 KB Output is correct
10 Correct 787 ms 128144 KB Output is correct
11 Correct 2417 ms 113044 KB Output is correct
12 Correct 561 ms 124124 KB Output is correct
13 Correct 380 ms 151176 KB Output is correct
14 Correct 1444 ms 77488 KB Output is correct
15 Correct 1405 ms 116300 KB Output is correct
16 Correct 2350 ms 112960 KB Output is correct
17 Correct 477 ms 148800 KB Output is correct
18 Correct 2330 ms 113100 KB Output is correct
19 Correct 50 ms 13912 KB Output is correct
20 Correct 68 ms 10252 KB Output is correct
21 Correct 89 ms 9568 KB Output is correct
22 Correct 606 ms 11840 KB Output is correct
23 Correct 609 ms 13156 KB Output is correct
24 Correct 88 ms 11572 KB Output is correct
25 Correct 448 ms 10348 KB Output is correct
26 Correct 747 ms 67720 KB Output is correct
27 Correct 1830 ms 116344 KB Output is correct
28 Correct 1665 ms 135408 KB Output is correct
29 Correct 1788 ms 98708 KB Output is correct
30 Execution timed out 3024 ms 113004 KB Time limit exceeded
31 Halted 0 ms 0 KB -