oj.uz

Submission #118824

# Submission time Handle Problem Language Result Execution time Memory
118824 2019-06-19T22:46:03 Z roseanne_pcy Fortune Telling 2 (JOI14_fortune_telling2) C++14
100 / 100
 1491 ms 125264 KB 
#include <bits/stdc++.h>
#pragma GCC optimize ("O3")
#pragma GCC target ("sse4")
using namespace std;
#define X first
#define Y second
#define pb push_back
typedef pair<int, int> ii;
typedef long long ll;

int n, m;

const int maxn = 2e5+5;

struct node
{
	int val;
	node *left, *right;
	node(int a, node *b, node *c)
	{
		val = a;
		left = b;
		right = c;
	}
	node* insert(int x, int L = 0, int R = m-1) 
	{
		if(L<= x && x<= R)
		{
			if(L == R) return new node(val+1, NULL, NULL);
			int M = (L+R)/2;
			return new node(val+1, left->insert(x, L, M), right->insert(x, M+1, R));
		}
		return this;
	}
	int ask(int i, int j, int L = 0, int R = m-1)
	{
		if(i> R || j< L) return 0;
		if(i<= L && R<= j) return val;
		int M = (L+R)/2;
		int x = left->ask(i, j, L, M);
		int y = right->ask(i, j, M+1, R);
		return x+y;
	}
};

node* zero = new node(0, NULL, NULL);

int A[maxn], B[maxn];

int op[maxn];
node* ps[maxn];
vector< ii > foo;

int main()
{
	scanf("%d %d", &n, &m);
	for(int i = 1; i<= n; i++) scanf("%d %d", &A[i], &B[i]);
	zero->left = zero->right = zero;
	for(int i = 0; i< m; i++)
	{
		scanf("%d", &op[i]);
		foo.pb(ii(op[i], i));
	}
	sort(foo.begin(), foo.end());
	ps[m] = zero;
	for(int i = m-1; i>= 0; i--)
	{
		ps[i] = ps[i+1];
		ps[i] = ps[i]->insert(foo[i].Y);
		// printf("insert %d\n", foo[i].Y);
	}
	ll ans = 0;
	for(int i = 1; i<= n; i++)
	{
		int a = A[i], b = B[i];
		if(a> b) swap(a, b);
		int pa = lower_bound(foo.begin(), foo.end(), ii(a, 0))-foo.begin();
		int pb = lower_bound(foo.begin(), foo.end(), ii(b, 0))-foo.begin();
		// printf("pa pb %d %d\n", pa, pb);
		int lo = 0, hi = m-1;
		while(lo< hi)
		{
			int mid = (lo+hi+1)/2;
			if((ps[pa])->ask(mid, m-1) == (ps[pb])->ask(mid, m-1)) hi = mid-1;
			else lo = mid;
		}
		// printf("lo = %d\n", lo);
		if(ps[pa]->ask(lo, m-1) == ps[pb]->ask(lo, m-1)) 
		{
			int swaps = ps[pa]->ask(0, m-1);
			if(swaps%2) ans += B[i];
			else ans += A[i];
			continue;
		}
		int swaps = ps[pa]->ask(lo+1, m-1);
		// printf("swaps %d\n", swaps);
		if(swaps%2) ans += a;
		else ans += b;
	}
	printf("%lld\n", ans);
}

Compilation message

fortune_telling2.cpp: In function 'int main()':
fortune_telling2.cpp:56:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &n, &m);
  ~~~~~^~~~~~~~~~~~~~~~~
fortune_telling2.cpp:57:34: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i = 1; i<= n; i++) scanf("%d %d", &A[i], &B[i]);
                             ~~~~~^~~~~~~~~~~~~~~~~~~~~~~
fortune_telling2.cpp:61:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &op[i]);
   ~~~~~^~~~~~~~~~~~~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 640 KB Output is correct
2 Correct 3 ms 768 KB Output is correct
3 Correct 4 ms 768 KB Output is correct
4 Correct 4 ms 768 KB Output is correct
5 Correct 4 ms 768 KB Output is correct
6 Correct 4 ms 768 KB Output is correct
7 Correct 5 ms 768 KB Output is correct
8 Correct 4 ms 768 KB Output is correct
9 Correct 3 ms 768 KB Output is correct
10 Correct 4 ms 768 KB Output is correct
11 Correct 4 ms 768 KB Output is correct
12 Correct 4 ms 768 KB Output is correct
13 Correct 5 ms 896 KB Output is correct

Subtask #2
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 640 KB Output is correct
2 Correct 3 ms 768 KB Output is correct
3 Correct 4 ms 768 KB Output is correct
4 Correct 4 ms 768 KB Output is correct
5 Correct 4 ms 768 KB Output is correct
6 Correct 4 ms 768 KB Output is correct
7 Correct 5 ms 768 KB Output is correct
8 Correct 4 ms 768 KB Output is correct
9 Correct 3 ms 768 KB Output is correct
10 Correct 4 ms 768 KB Output is correct
11 Correct 4 ms 768 KB Output is correct
12 Correct 4 ms 768 KB Output is correct
13 Correct 5 ms 896 KB Output is correct
14 Correct 33 ms 5496 KB Output is correct
15 Correct 69 ms 11112 KB Output is correct
16 Correct 122 ms 17012 KB Output is correct
17 Correct 163 ms 23152 KB Output is correct
18 Correct 152 ms 23280 KB Output is correct
19 Correct 152 ms 23024 KB Output is correct
20 Correct 166 ms 23140 KB Output is correct
21 Correct 134 ms 22996 KB Output is correct
22 Correct 117 ms 22640 KB Output is correct
23 Correct 137 ms 22680 KB Output is correct
24 Correct 129 ms 22648 KB Output is correct
25 Correct 120 ms 22684 KB Output is correct
26 Correct 149 ms 23004 KB Output is correct
27 Correct 190 ms 23152 KB Output is correct
28 Correct 163 ms 23028 KB Output is correct
29 Correct 221 ms 23152 KB Output is correct

Subtask #3
65.0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 640 KB Output is correct
2 Correct 3 ms 768 KB Output is correct
3 Correct 4 ms 768 KB Output is correct
4 Correct 4 ms 768 KB Output is correct
5 Correct 4 ms 768 KB Output is correct
6 Correct 4 ms 768 KB Output is correct
7 Correct 5 ms 768 KB Output is correct
8 Correct 4 ms 768 KB Output is correct
9 Correct 3 ms 768 KB Output is correct
10 Correct 4 ms 768 KB Output is correct
11 Correct 4 ms 768 KB Output is correct
12 Correct 4 ms 768 KB Output is correct
13 Correct 5 ms 896 KB Output is correct
14 Correct 33 ms 5496 KB Output is correct
15 Correct 69 ms 11112 KB Output is correct
16 Correct 122 ms 17012 KB Output is correct
17 Correct 163 ms 23152 KB Output is correct
18 Correct 152 ms 23280 KB Output is correct
19 Correct 152 ms 23024 KB Output is correct
20 Correct 166 ms 23140 KB Output is correct
21 Correct 134 ms 22996 KB Output is correct
22 Correct 117 ms 22640 KB Output is correct
23 Correct 137 ms 22680 KB Output is correct
24 Correct 129 ms 22648 KB Output is correct
25 Correct 120 ms 22684 KB Output is correct
26 Correct 149 ms 23004 KB Output is correct
27 Correct 190 ms 23152 KB Output is correct
28 Correct 163 ms 23028 KB Output is correct
29 Correct 221 ms 23152 KB Output is correct
30 Correct 394 ms 123440 KB Output is correct
31 Correct 565 ms 124028 KB Output is correct
32 Correct 727 ms 124488 KB Output is correct
33 Correct 1491 ms 125228 KB Output is correct
34 Correct 424 ms 123228 KB Output is correct
35 Correct 1179 ms 125264 KB Output is correct
36 Correct 1166 ms 125228 KB Output is correct
37 Correct 1140 ms 125072 KB Output is correct
38 Correct 1444 ms 124900 KB Output is correct
39 Correct 1442 ms 124864 KB Output is correct
40 Correct 1085 ms 124900 KB Output is correct
41 Correct 1151 ms 124904 KB Output is correct
42 Correct 1146 ms 124924 KB Output is correct
43 Correct 723 ms 124904 KB Output is correct
44 Correct 717 ms 124976 KB Output is correct
45 Correct 713 ms 125028 KB Output is correct
46 Correct 899 ms 124900 KB Output is correct
47 Correct 806 ms 125028 KB Output is correct
48 Correct 1209 ms 125028 KB Output is correct
49 Correct 1200 ms 124872 KB Output is correct