oj.uz

Submission #927792

# Submission time Handle Problem Language Result Execution time Memory
927792 2024-02-15T10:45:00 Z penguin133 Simple game (IZhO17_game) C++17
100 / 100
 88 ms 8904 KB 
#include <bits/stdc++.h>
using namespace std;

#define int long long
#define pi pair<int, int>
#define pii pair<int, pi>
#define fi first
#define se second
#ifdef _WIN32
#define getchar_unlocked _getchar_nolock
#endif
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());

int ft[300005];
const int lim = 3e5;
void upd(int l, int r, int v){
	if(l > r)swap(l, r);
	for(; l <= lim; l += (l & -l))ft[l] += v;
	r++;
	for(; r <= lim; r += ( r & -r))ft[r] -= v;
}

int qry(int p){
	int res = 0;
	for(;p;p-= (p & -p))res += ft[p];
	return res;
}

int Q[3][100005], A[100005];

void solve(){
	int n, q; cin >> n >> q;
	vector <int> sad;
	for(int i = 1; i <= n; i++)cin >> A[i], sad.push_back(A[i]);
	for(int i = 1; i <= q; i++){
		cin >> Q[0][i];
		if(Q[0][i] == 1)cin >> Q[1][i] >> Q[2][i], sad.push_back(Q[2][i]);
		else cin >> Q[1][i], sad.push_back(Q[1][i]);
	}
	sort(sad.begin(), sad.end());
	sad.erase(unique(sad.begin(), sad.end()), sad.end());
	for(int i = 1; i <= n; i++){
		A[i] = lower_bound(sad.begin(), sad.end(), A[i]) - sad.begin() + 1;
	}
	for(int i = 1; i < n; i++)upd(A[i], A[i + 1], 1);
	for(int i = 1; i <= q; i++){
		if(Q[0][i] == 1){
			if(Q[1][i] != 1)upd(A[Q[1][i]], A[Q[1][i] - 1], -1);
			if(Q[1][i] != n)upd(A[Q[1][i]], A[Q[1][i] + 1], -1);
			A[Q[1][i]] = lower_bound(sad.begin(), sad.end(), Q[2][i]) - sad.begin() + 1;
			int x = Q[1][i];
			if(x != 1)upd(A[x], A[x - 1], 1);
			if(x != n)upd(A[x], A[x + 1] ,1);
		}
		else{
			int tmp = lower_bound(sad.begin(), sad.end(), Q[1][i]) - sad.begin() + 1;
			cout << qry(tmp) << '\n';
		}
	}
}

main(){
	ios::sync_with_stdio(0);cin.tie(0);
	int tc = 1;
	//cin >> tc;
	for(int tc1=1;tc1<=tc;tc1++){
		// cout << "Case #" << tc1 << ": ";
		solve();
	}
}

Compilation message

game.cpp:62:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   62 | main(){
      | ^~~~

Subtask #1
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4440 KB Output is correct
2 Correct 2 ms 4444 KB Output is correct
3 Correct 1 ms 4456 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 4444 KB Output is correct
6 Correct 2 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct

Subtask #2
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4440 KB Output is correct
2 Correct 2 ms 4444 KB Output is correct
3 Correct 1 ms 4456 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 4444 KB Output is correct
6 Correct 2 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 42 ms 7244 KB Output is correct
9 Correct 77 ms 8856 KB Output is correct
10 Correct 71 ms 8904 KB Output is correct
11 Correct 35 ms 7124 KB Output is correct
12 Correct 59 ms 8356 KB Output is correct
13 Correct 55 ms 8432 KB Output is correct

Subtask #3
51.0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4440 KB Output is correct
2 Correct 2 ms 4444 KB Output is correct
3 Correct 1 ms 4456 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 4444 KB Output is correct
6 Correct 2 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 42 ms 7244 KB Output is correct
9 Correct 77 ms 8856 KB Output is correct
10 Correct 71 ms 8904 KB Output is correct
11 Correct 35 ms 7124 KB Output is correct
12 Correct 59 ms 8356 KB Output is correct
13 Correct 55 ms 8432 KB Output is correct
14 Correct 80 ms 8904 KB Output is correct
15 Correct 82 ms 8832 KB Output is correct
16 Correct 79 ms 8780 KB Output is correct
17 Correct 88 ms 8900 KB Output is correct
18 Correct 80 ms 8884 KB Output is correct