oj.uz

Submission #258560

# Submission time Handle Problem Language Result Execution time Memory
258560 2020-08-06T06:29:33 Z arnold518 Employment (JOI16_employment) C++14
100 / 100
 751 ms 20212 KB 
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

const int MAXN = 8e5;

int N, M, S, A[MAXN+10];

struct Query
{
	int t, a, b;
};
Query B[MAXN+10];

vector<int> comp;
int getcomp(int x) { return lower_bound(comp.begin(), comp.end(), x)-comp.begin()+1; }

int tree[MAXN*4+10];
void update(int node, int tl, int tr, int l, int r, int k)
{
	if(l>r) return;
	if(r<tl || tr<l) return;
	if(l<=tl && tr<=r) { tree[node]+=k; return; }
	int mid=tl+tr>>1;
	update(node*2, tl, mid, l, r, k);
	update(node*2+1, mid+1, tr, l, r, k);
}
int query(int node, int tl, int tr, int p)
{
	if(tl==tr) return tree[node];
	int mid=tl+tr>>1;
	if(p<=mid) return query(node*2, tl, mid, p)+tree[node];
	else return query(node*2+1, mid+1, tr, p)+tree[node];
}

int main()
{
	int i, j;

	scanf("%d%d", &N, &M);
	for(i=1; i<=N; i++) scanf("%d", &A[i]);

	for(i=1; i<=M; i++)
	{
		int t=0, a=0, b=0;
		scanf("%d", &t);
		if(t==1) scanf("%d", &a), comp.push_back(a);
		else scanf("%d%d", &a, &b), comp.push_back(b), comp.push_back(b+1);
		B[i].t=t; B[i].a=a; B[i].b=b;
	}

	comp.push_back(0);
	comp.push_back(1);
	for(i=1; i<=N; i++)
	{
		comp.push_back(A[i]);
		comp.push_back(A[i]+1);
	}
	sort(comp.begin(), comp.end());
	comp.erase(unique(comp.begin(), comp.end()), comp.end());
	S=comp.size();

	for(i=1; i<=N+1; i++)
	{
		int a=getcomp(min(A[i-1], A[i])+1), b=getcomp(max(A[i-1], A[i]));
		update(1, 1, S, a, b, 1);
	}

	for(i=1; i<=M; i++)
	{
		int t=B[i].t, a=B[i].a, b=B[i].b;
		if(t==1) printf("%d\n", query(1, 1, S, getcomp(a))/2);
		else
		{
			int p, q;
			p=getcomp(min(A[a-1], A[a])+1), q=getcomp(max(A[a-1], A[a]));
			update(1, 1, S, p, q, -1);
			p=getcomp(min(A[a+1], A[a])+1), q=getcomp(max(A[a+1], A[a]));
			update(1, 1, S, p, q, -1);
			A[a]=b;
			p=getcomp(min(A[a-1], A[a])+1), q=getcomp(max(A[a-1], A[a]));
			update(1, 1, S, p, q, 1);
			p=getcomp(min(A[a+1], A[a])+1), q=getcomp(max(A[a+1], A[a]));
			update(1, 1, S, p, q, 1);
		}
	}
}

Compilation message

employment.cpp: In function 'void update(int, int, int, int, int, int)':
employment.cpp:27:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  int mid=tl+tr>>1;
          ~~^~~
employment.cpp: In function 'int query(int, int, int, int)':
employment.cpp:34:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  int mid=tl+tr>>1;
          ~~^~~
employment.cpp: In function 'int main()':
employment.cpp:41:9: warning: unused variable 'j' [-Wunused-variable]
  int i, j;
         ^
employment.cpp:43:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &N, &M);
  ~~~~~^~~~~~~~~~~~~~~~
employment.cpp:44:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(i=1; i<=N; i++) scanf("%d", &A[i]);
                      ~~~~~^~~~~~~~~~~~~
employment.cpp:49:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &t);
   ~~~~~^~~~~~~~~~
employment.cpp:50:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   if(t==1) scanf("%d", &a), comp.push_back(a);
            ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~
employment.cpp:51:48: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   else scanf("%d%d", &a, &b), comp.push_back(b), comp.push_back(b+1);
        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 3 ms 512 KB Output is correct
8 Correct 3 ms 512 KB Output is correct
9 Correct 5 ms 512 KB Output is correct
10 Correct 5 ms 512 KB Output is correct
11 Correct 5 ms 512 KB Output is correct
12 Correct 7 ms 512 KB Output is correct
13 Correct 5 ms 512 KB Output is correct
14 Correct 5 ms 512 KB Output is correct
15 Correct 5 ms 512 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 512 KB Output is correct
2 Correct 6 ms 640 KB Output is correct
3 Correct 4 ms 512 KB Output is correct
4 Correct 26 ms 1908 KB Output is correct
5 Correct 55 ms 3184 KB Output is correct
6 Correct 86 ms 5228 KB Output is correct
7 Correct 139 ms 6696 KB Output is correct
8 Correct 178 ms 9696 KB Output is correct
9 Correct 304 ms 13284 KB Output is correct
10 Correct 348 ms 12120 KB Output is correct
11 Correct 372 ms 14436 KB Output is correct
12 Correct 405 ms 19420 KB Output is correct
13 Correct 422 ms 19564 KB Output is correct
14 Correct 402 ms 19292 KB Output is correct
15 Correct 411 ms 19276 KB Output is correct
16 Correct 427 ms 19676 KB Output is correct
17 Correct 421 ms 19548 KB Output is correct
18 Correct 424 ms 19676 KB Output is correct
19 Correct 422 ms 19548 KB Output is correct
20 Correct 423 ms 19812 KB Output is correct

Subtask #3
60.0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 3 ms 512 KB Output is correct
8 Correct 3 ms 512 KB Output is correct
9 Correct 5 ms 512 KB Output is correct
10 Correct 5 ms 512 KB Output is correct
11 Correct 5 ms 512 KB Output is correct
12 Correct 7 ms 512 KB Output is correct
13 Correct 5 ms 512 KB Output is correct
14 Correct 5 ms 512 KB Output is correct
15 Correct 5 ms 512 KB Output is correct
16 Correct 3 ms 512 KB Output is correct
17 Correct 6 ms 640 KB Output is correct
18 Correct 4 ms 512 KB Output is correct
19 Correct 26 ms 1908 KB Output is correct
20 Correct 55 ms 3184 KB Output is correct
21 Correct 86 ms 5228 KB Output is correct
22 Correct 139 ms 6696 KB Output is correct
23 Correct 178 ms 9696 KB Output is correct
24 Correct 304 ms 13284 KB Output is correct
25 Correct 348 ms 12120 KB Output is correct
26 Correct 372 ms 14436 KB Output is correct
27 Correct 405 ms 19420 KB Output is correct
28 Correct 422 ms 19564 KB Output is correct
29 Correct 402 ms 19292 KB Output is correct
30 Correct 411 ms 19276 KB Output is correct
31 Correct 427 ms 19676 KB Output is correct
32 Correct 421 ms 19548 KB Output is correct
33 Correct 424 ms 19676 KB Output is correct
34 Correct 422 ms 19548 KB Output is correct
35 Correct 423 ms 19812 KB Output is correct
36 Correct 2 ms 512 KB Output is correct
37 Correct 5 ms 512 KB Output is correct
38 Correct 6 ms 640 KB Output is correct
39 Correct 43 ms 2160 KB Output is correct
40 Correct 86 ms 3184 KB Output is correct
41 Correct 144 ms 5356 KB Output is correct
42 Correct 203 ms 6380 KB Output is correct
43 Correct 298 ms 9700 KB Output is correct
44 Correct 568 ms 18144 KB Output is correct
45 Correct 449 ms 12260 KB Output is correct
46 Correct 507 ms 17192 KB Output is correct
47 Correct 694 ms 19936 KB Output is correct
48 Correct 708 ms 20016 KB Output is correct
49 Correct 709 ms 19932 KB Output is correct
50 Correct 688 ms 20060 KB Output is correct
51 Correct 751 ms 20176 KB Output is correct
52 Correct 725 ms 20188 KB Output is correct
53 Correct 724 ms 20212 KB Output is correct
54 Correct 717 ms 20156 KB Output is correct
55 Correct 731 ms 20080 KB Output is correct