oj.uz

Submission #889712

# Submission time Handle Problem Language Result Execution time Memory
889712 2023-12-20T05:55:03 Z vjudge1 Tourism (JOI23_tourism) C++17
5 / 100
 5000 ms 61008 KB 
#include <bits/stdc++.h>
using namespace std;/*
<<<<It's never too late for a new beginning in your life>>>>
Today is hard
  tomorrow will worse
  but the day after tomorrow will be the sunshine..
 
HARD WORK BEATS TALENT WHEN TALENT DOESN'T WORK HARD............
Never give up  */
//The most CHALISHKANCHIK
#define ff first
#define ss second
#define pb push_back
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()
#define int long long
typedef vector<int> vi;
typedef pair<int,int> pii;
typedef vector<pair<int,int> > vii;
const int N = 2e5+50, inf = 1e18, mod = 1e9+7;
vi g[N];
set<pii> mp, jol;
set<int> chk;
void dfs(int pos, int pr){
	if(chk.empty())return;
	if(chk.count(pos) > 0){
		chk.erase(chk.find(pos));
		if(!jol.empty()){
			for(auto i:jol){
				mp.insert(i);
			}
		}
	}
	for(auto to:g[pos]){
		if(to == pr)continue;
		jol.insert({pos, to});
		dfs(to, pos);
		jol.erase(jol.find({pos, to}));
	}
}
int st[17][N];
int st2[17][N];
int get(int l, int r) {
	int cl = __lg(r - l + 1);
	return min(st[cl][l], st[cl][r - (1 << cl) + 1]);
}
int getm(int l, int r) {
	int cl = __lg(r - l + 1);
	return max(st2[cl][l], st2[cl][r - (1 << cl) + 1]);
}
void solve(){
	int n, m, q, a, b;
	cin >> n >> m >> q;
	bool ok = 1;
	for(int i = 0; i < n-1; i++){
		cin >> a >> b;
		g[a].pb(b);
		g[b].pb(a);
		if(a!=i+1 || b!=i+2)ok = 0;
	}
	int pl[m+1]{};
	for(int i = 1; i <= m; i++){
		cin >> pl[i];
	}
	if(ok){
		for(int i = 1; i <= m; i++){
			st[0][i] = pl[i];
			st2[0][i] = pl[i];
		}
		for (int i = 1; i <= __lg(n); i++) {
			int len = 1 << (i - 1);
			for (int j = 1; j <= n; j++) {
				st[i][j] = min(st[i - 1][j], st[i - 1][ min(j + len, n) ]);
			}
		}
		for (int i = 1; i <= __lg(n); i++) {
			int len = 1 << (i - 1);
			for (int j = 1; j <= n; j++) {
				st2[i][j] = max(st2[i - 1][j], st2[i - 1][ min(j + len, n) ]);
			}
		}
		while(q--){
			int l, r;
			cin >> l >> r;
			cout << getm(l, r) - get(l, r)+1 << '\n';
		}
	}else{
		while(q--){
			int l, r;
			cin >> l >> r;
			for(int i = l+1; i <= r; i++)chk.insert(pl[i]);
			dfs(pl[l], -1);
			cout << mp.size()+1 << '\n';
			mp.clear();
			//~ queue<pii> q;
			//~ q.push({pl[l], 0});
			//~ int us[n+1]{};
			//~ while(!q.empty()){
				//~ auto [pos, ds] = q.front();
				//~ cout << pos << ' ' << ds << '\n';
				//~ q.pop();
				//~ us[pos] = 1;
				//~ for(auto to:g[pos]){
					//~ if(us[to])continue;
					//~ if(chk.count(to)){
						//~ ans += ds+1;
						//~ ds = 0;
					//~ }
				//~ }
				//~ for(auto to:g[pos]){
					//~ if(us[to])continue;
					
					//~ if(chk.count(to)){
						//~ chk.erase(to);
						//~ q.push({to, 0});
					//~ }else q.push({to, ds+1});
				//~ }
				//~ if(chk.empty())break;
			//~ }
			//~ cout << ans+1 << '\n';
		}
	}
}
main(){
	ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
	int t = 1;
	//~ cin >> t;
	while(t--){
		solve();
	}
}

Compilation message

tourism.cpp:124:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
  124 | main(){
      | ^~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6748 KB Output is correct
2 Correct 3 ms 21084 KB Output is correct
3 Correct 1 ms 6748 KB Output is correct
4 Correct 12 ms 6944 KB Output is correct
5 Correct 13 ms 6748 KB Output is correct
6 Correct 10 ms 6748 KB Output is correct
7 Correct 14 ms 6948 KB Output is correct
8 Correct 14 ms 6744 KB Output is correct
9 Correct 25 ms 7000 KB Output is correct
10 Correct 25 ms 6748 KB Output is correct
11 Correct 25 ms 6748 KB Output is correct
12 Correct 43 ms 6748 KB Output is correct
13 Correct 38 ms 6748 KB Output is correct
14 Correct 39 ms 6748 KB Output is correct
15 Correct 99 ms 7004 KB Output is correct
16 Correct 93 ms 7004 KB Output is correct
17 Correct 96 ms 6748 KB Output is correct
18 Correct 67 ms 6748 KB Output is correct
19 Correct 73 ms 6748 KB Output is correct
20 Correct 82 ms 6748 KB Output is correct
21 Correct 13 ms 6748 KB Output is correct
22 Correct 13 ms 6748 KB Output is correct
23 Correct 13 ms 6748 KB Output is correct
24 Correct 14 ms 6964 KB Output is correct
25 Correct 13 ms 6748 KB Output is correct
26 Correct 13 ms 6748 KB Output is correct
27 Correct 2 ms 8796 KB Output is correct
28 Correct 1 ms 6748 KB Output is correct
29 Correct 2 ms 6748 KB Output is correct

Subtask #2
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6748 KB Output is correct
2 Correct 3 ms 21084 KB Output is correct
3 Correct 1 ms 6748 KB Output is correct
4 Correct 12 ms 6944 KB Output is correct
5 Correct 13 ms 6748 KB Output is correct
6 Correct 10 ms 6748 KB Output is correct
7 Correct 14 ms 6948 KB Output is correct
8 Correct 14 ms 6744 KB Output is correct
9 Correct 25 ms 7000 KB Output is correct
10 Correct 25 ms 6748 KB Output is correct
11 Correct 25 ms 6748 KB Output is correct
12 Correct 43 ms 6748 KB Output is correct
13 Correct 38 ms 6748 KB Output is correct
14 Correct 39 ms 6748 KB Output is correct
15 Correct 99 ms 7004 KB Output is correct
16 Correct 93 ms 7004 KB Output is correct
17 Correct 96 ms 6748 KB Output is correct
18 Correct 67 ms 6748 KB Output is correct
19 Correct 73 ms 6748 KB Output is correct
20 Correct 82 ms 6748 KB Output is correct
21 Correct 13 ms 6748 KB Output is correct
22 Correct 13 ms 6748 KB Output is correct
23 Correct 13 ms 6748 KB Output is correct
24 Correct 14 ms 6964 KB Output is correct
25 Correct 13 ms 6748 KB Output is correct
26 Correct 13 ms 6748 KB Output is correct
27 Correct 2 ms 8796 KB Output is correct
28 Correct 1 ms 6748 KB Output is correct
29 Correct 2 ms 6748 KB Output is correct
30 Correct 633 ms 7000 KB Output is correct
31 Correct 828 ms 7252 KB Output is correct
32 Correct 1332 ms 7144 KB Output is correct
33 Correct 1339 ms 7152 KB Output is correct
34 Correct 1296 ms 7408 KB Output is correct
35 Correct 2438 ms 7148 KB Output is correct
36 Correct 2496 ms 7152 KB Output is correct
37 Correct 2499 ms 7252 KB Output is correct
38 Execution timed out 5023 ms 7392 KB Time limit exceeded
39 Halted 0 ms 0 KB -

Subtask #3
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 21084 KB Output is correct
2 Correct 2 ms 8796 KB Output is correct
3 Correct 2 ms 9052 KB Output is correct
4 Incorrect 44 ms 61008 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6744 KB Output is correct
2 Execution timed out 5083 ms 9400 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #5
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6748 KB Output is correct
2 Correct 2 ms 8796 KB Output is correct
3 Correct 2 ms 9052 KB Output is correct
4 Execution timed out 5048 ms 13140 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #6
0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6748 KB Output is correct
2 Correct 3 ms 21084 KB Output is correct
3 Correct 1 ms 6748 KB Output is correct
4 Correct 12 ms 6944 KB Output is correct
5 Correct 13 ms 6748 KB Output is correct
6 Correct 10 ms 6748 KB Output is correct
7 Correct 14 ms 6948 KB Output is correct
8 Correct 14 ms 6744 KB Output is correct
9 Correct 25 ms 7000 KB Output is correct
10 Correct 25 ms 6748 KB Output is correct
11 Correct 25 ms 6748 KB Output is correct
12 Correct 43 ms 6748 KB Output is correct
13 Correct 38 ms 6748 KB Output is correct
14 Correct 39 ms 6748 KB Output is correct
15 Correct 99 ms 7004 KB Output is correct
16 Correct 93 ms 7004 KB Output is correct
17 Correct 96 ms 6748 KB Output is correct
18 Correct 67 ms 6748 KB Output is correct
19 Correct 73 ms 6748 KB Output is correct
20 Correct 82 ms 6748 KB Output is correct
21 Correct 13 ms 6748 KB Output is correct
22 Correct 13 ms 6748 KB Output is correct
23 Correct 13 ms 6748 KB Output is correct
24 Correct 14 ms 6964 KB Output is correct
25 Correct 13 ms 6748 KB Output is correct
26 Correct 13 ms 6748 KB Output is correct
27 Correct 2 ms 8796 KB Output is correct
28 Correct 1 ms 6748 KB Output is correct
29 Correct 2 ms 6748 KB Output is correct
30 Correct 633 ms 7000 KB Output is correct
31 Correct 828 ms 7252 KB Output is correct
32 Correct 1332 ms 7144 KB Output is correct
33 Correct 1339 ms 7152 KB Output is correct
34 Correct 1296 ms 7408 KB Output is correct
35 Correct 2438 ms 7148 KB Output is correct
36 Correct 2496 ms 7152 KB Output is correct
37 Correct 2499 ms 7252 KB Output is correct
38 Execution timed out 5023 ms 7392 KB Time limit exceeded
39 Halted 0 ms 0 KB -