oj.uz

Submission #125315

# Submission time Handle Problem Language Result Execution time Memory
125315 2019-07-05T05:33:58 Z 박상수(#3065) Long Mansion (JOI17_long_mansion) C++14
100 / 100
 522 ms 57720 KB 
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <memory.h>
#include <math.h>
#include <assert.h>
#include <stack>
#include <queue>
#include <map>
#include <set>
#include <string>
#include <algorithm>
#include <iostream>
#include <functional>
#include <unordered_set>
#include <bitset>
#include <time.h>
#include <limits.h>

using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
#define Fi first
#define Se second
#define pb push_back
#define szz(x) (int)x.size()
#define rep(i,n) for(int i=0;i<n;i++)
#define all(x) x.begin(),x.end()
typedef tuple<int, int, int> t3;

int N, C[500050], Q;
vector <int> B[500050], Ins[500050];
int last[500050], pre[500050], nxt[500050];
pii ans[500050];

void upd(pii &p, pii a) {
	p.Fi = max(p.Fi, a.Fi);
	p.Se = min(p.Se, a.Se);
}

int Temp[500050];
void Do(int l, int r) {
	if(l == r) {
		if(nxt[l] >= l && pre[l] <= l) {
			ans[l] = pii(l, l);
		}
		return;
	}
	int m = (l + r) >> 1;
	for(int i=l;i<=m;i++) Temp[i] = 1e9;
	for(int i=m+1;i<=r;i++) {
		if(pre[i] <= m) {
			int pp = max(pre[i], l);
			Temp[pp] = min(Temp[pp], i);
		}
	}
	for(int i=l+1;i<=m;i++) Temp[i] = min(Temp[i], Temp[i-1]);
	pii now = pii(1, N);
	for(int i=l;i<=m;i++) {
		if(nxt[i] >= Temp[i]) {
			upd(now, pii(i, Temp[i]));
		}
		upd(ans[i], now);
	}
	for(int i=m+1;i<=r;i++) Temp[i] = -1e9;
	for(int i=l;i<=m;i++) {
		if(nxt[i] > m) {
			int nn = min(nxt[i], r);
			Temp[nn] = max(Temp[nn], i);
		}
	}
	for(int i=r-1;i>m;i--) Temp[i] = max(Temp[i], Temp[i+1]);
	now = pii(1, N);
	for(int i=r;i>m;i--) {
		if(pre[i] <= Temp[i]) {
			upd(now, pii(Temp[i], i));
		}
		upd(ans[i], now);
	}
	
	Do(l, m);
	Do(m+1, r);
}

int main() {
	scanf("%d", &N);
	for(int i=2;i<=N;i++) scanf("%d", C + i);
	for(int i=1;i<=N;i++) {
		int x; scanf("%d", &x);
		rep(j, x) {
			int a; scanf("%d", &a);
			B[i].pb(a);
		}
	}
	for(int i=1;i<=N;i++) {
		for(int e : B[i]) last[e] = i;
		if(i < N) {
			pre[i] = last[C[i+1]] + 1;
		}
		else pre[i] = 1;
	}
	rep(i, 500050) last[i] = N + 1;
	for(int i=N;i;i--) {
		for(int e : B[i]) last[e] = i;
		if(i > 1) {
			nxt[i] = last[C[i]] - 1;
		}
		else nxt[i] = N;
	}
	
	for(int i=1;i<=N;i++) ans[i] = pii(1, N);
	Do(1, N);
	
	scanf("%d", &Q);
	for(int i=1;i<=Q;i++) {
		int x, y;
		scanf("%d%d", &x, &y);
		if(ans[x].Fi <= y && y <= ans[x].Se) {
			puts("YES");
		}
		else puts("NO");
	}
	return 0;
}

Compilation message

long_mansion.cpp: In function 'int main()':
long_mansion.cpp:87:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &N);
  ~~~~~^~~~~~~~~~
long_mansion.cpp:88:29: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i=2;i<=N;i++) scanf("%d", C + i);
                        ~~~~~^~~~~~~~~~~~~
long_mansion.cpp:90:15: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   int x; scanf("%d", &x);
          ~~~~~^~~~~~~~~~
long_mansion.cpp:92:16: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    int a; scanf("%d", &a);
           ~~~~~^~~~~~~~~~
long_mansion.cpp:115:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &Q);
  ~~~~~^~~~~~~~~~
long_mansion.cpp:118:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d", &x, &y);
   ~~~~~^~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 25976 KB Output is correct
2 Correct 29 ms 26104 KB Output is correct
3 Correct 29 ms 26232 KB Output is correct
4 Correct 28 ms 25976 KB Output is correct
5 Correct 28 ms 25976 KB Output is correct
6 Correct 28 ms 25976 KB Output is correct
7 Correct 27 ms 25976 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 25976 KB Output is correct
2 Correct 29 ms 26104 KB Output is correct
3 Correct 29 ms 26232 KB Output is correct
4 Correct 28 ms 25976 KB Output is correct
5 Correct 28 ms 25976 KB Output is correct
6 Correct 28 ms 25976 KB Output is correct
7 Correct 27 ms 25976 KB Output is correct
8 Correct 156 ms 30200 KB Output is correct
9 Correct 155 ms 30200 KB Output is correct
10 Correct 159 ms 30456 KB Output is correct
11 Correct 156 ms 30584 KB Output is correct
12 Correct 147 ms 30496 KB Output is correct
13 Correct 151 ms 30428 KB Output is correct
14 Correct 160 ms 30456 KB Output is correct
15 Correct 150 ms 30584 KB Output is correct
16 Correct 146 ms 30684 KB Output is correct
17 Correct 159 ms 30428 KB Output is correct
18 Correct 150 ms 30484 KB Output is correct
19 Correct 150 ms 30456 KB Output is correct
20 Correct 149 ms 30640 KB Output is correct
21 Correct 145 ms 30728 KB Output is correct
22 Correct 150 ms 30492 KB Output is correct
23 Correct 152 ms 30328 KB Output is correct
24 Correct 152 ms 30328 KB Output is correct
25 Correct 152 ms 30300 KB Output is correct
26 Correct 158 ms 30304 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 300 ms 37576 KB Output is correct
2 Correct 314 ms 36728 KB Output is correct
3 Correct 284 ms 36640 KB Output is correct
4 Correct 297 ms 36700 KB Output is correct
5 Correct 294 ms 36728 KB Output is correct
6 Correct 234 ms 36188 KB Output is correct
7 Correct 232 ms 36472 KB Output is correct
8 Correct 234 ms 36472 KB Output is correct
9 Correct 228 ms 36668 KB Output is correct
10 Correct 232 ms 36472 KB Output is correct
11 Correct 227 ms 36344 KB Output is correct

Subtask #4
75.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 25976 KB Output is correct
2 Correct 29 ms 26104 KB Output is correct
3 Correct 29 ms 26232 KB Output is correct
4 Correct 28 ms 25976 KB Output is correct
5 Correct 28 ms 25976 KB Output is correct
6 Correct 28 ms 25976 KB Output is correct
7 Correct 27 ms 25976 KB Output is correct
8 Correct 156 ms 30200 KB Output is correct
9 Correct 155 ms 30200 KB Output is correct
10 Correct 159 ms 30456 KB Output is correct
11 Correct 156 ms 30584 KB Output is correct
12 Correct 147 ms 30496 KB Output is correct
13 Correct 151 ms 30428 KB Output is correct
14 Correct 160 ms 30456 KB Output is correct
15 Correct 150 ms 30584 KB Output is correct
16 Correct 146 ms 30684 KB Output is correct
17 Correct 159 ms 30428 KB Output is correct
18 Correct 150 ms 30484 KB Output is correct
19 Correct 150 ms 30456 KB Output is correct
20 Correct 149 ms 30640 KB Output is correct
21 Correct 145 ms 30728 KB Output is correct
22 Correct 150 ms 30492 KB Output is correct
23 Correct 152 ms 30328 KB Output is correct
24 Correct 152 ms 30328 KB Output is correct
25 Correct 152 ms 30300 KB Output is correct
26 Correct 158 ms 30304 KB Output is correct
27 Correct 300 ms 37576 KB Output is correct
28 Correct 314 ms 36728 KB Output is correct
29 Correct 284 ms 36640 KB Output is correct
30 Correct 297 ms 36700 KB Output is correct
31 Correct 294 ms 36728 KB Output is correct
32 Correct 234 ms 36188 KB Output is correct
33 Correct 232 ms 36472 KB Output is correct
34 Correct 234 ms 36472 KB Output is correct
35 Correct 228 ms 36668 KB Output is correct
36 Correct 232 ms 36472 KB Output is correct
37 Correct 227 ms 36344 KB Output is correct
38 Correct 499 ms 52220 KB Output is correct
39 Correct 522 ms 57592 KB Output is correct
40 Correct 442 ms 46632 KB Output is correct
41 Correct 470 ms 57720 KB Output is correct
42 Correct 253 ms 35836 KB Output is correct
43 Correct 250 ms 35960 KB Output is correct
44 Correct 348 ms 41308 KB Output is correct
45 Correct 349 ms 41208 KB Output is correct
46 Correct 348 ms 41196 KB Output is correct
47 Correct 254 ms 35960 KB Output is correct
48 Correct 255 ms 36128 KB Output is correct
49 Correct 346 ms 41080 KB Output is correct
50 Correct 343 ms 41080 KB Output is correct
51 Correct 350 ms 40952 KB Output is correct
52 Correct 336 ms 40952 KB Output is correct
53 Correct 421 ms 46032 KB Output is correct
54 Correct 475 ms 51448 KB Output is correct
55 Correct 402 ms 46128 KB Output is correct