oj.uz

Submission #889966

# Submission time Handle Problem Language Result Execution time Memory
889966 2023-12-20T10:25:37 Z vjudge1 Hedgehog Daniyar and Algorithms (IZhO19_sortbooks) C++17
34 / 100
 3000 ms 18192 KB 
#include <bits/stdc++.h>
using namespace std;
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
  
#define ordered_set tree<int, null_type,less<int>, rb_tree_tag,tree_order_statistics_node_update>
 
 #pragma GCC optimize("Ofast,unroll-loops,fast-math")
 #pragma GCC target("popcnt")


typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef pair<ll,ll> pll;
 
#define sz size()
#define ff first
#define ss second
#define all(a) a.begin(),a.end()
#define pb push_back

const int mod = ll(1e9)+7; //(b + (a%b)) % b (to mod -1%(10^9+7) correctly in c++ its -1 but its suppose to be 10^9+6
const ll MOD = 998244353;  // (a%mod)*(binpow(b,mod-2,mod) = (a/b)%mod
const int N = ll(2e5)+10;
const long long inf = 2e18;
const long double eps = 1e-15L;
 
ll lcm(ll a, ll b) { return (a / __gcd(a,b))*b; }

ll binpow(ll a, ll b, ll m) { ll res=1; a %= m; while(b>0){ if(b&1)res=(res * a) % m; a=(a * a) % m; b/=2; } return res%m;}
 
void Freopen(string Key){ freopen((Key+".in").c_str(), "r", stdin); freopen((Key+".out").c_str(), "w", stdout); }

const int B = 220;

int n, m, w[N], sta[20][N], LOG[N], mxsuf[N];
//int ql[N], qr[N], qk[N]
int get(int l, int r) {
	if(l > r) return 0;
	int j = LOG[r - l + 1];
	return max(sta[j][l], sta[j][r-(1<<j)+1]);
}

void Baizho() {	
	for(int i = 2; i < N; i ++) LOG[i] = LOG[i / 2] + 1;
	cin>>n>>m;
	for(int i = 1; i <= n; i ++) {
		cin>>w[i];
		sta[0][i] = w[i];
	}
	for(int j = 1; j <= 19; j ++) {
		for(int i = 1; i+(1<<j)-1 <= n; i ++) {
			sta[j][i] = max(sta[j-1][i], sta[j-1][i+(1<<j-1)]);
		}
	}
	for(int i = 1; i <= n; i ++) {
		if(i % B == 1) {
			int r = min(n, i + B - 1), mx = 0, ans = 0;
			for(int j = i; j <= r; j ++) {
				if(mx > w[j]) mxsuf[j] = mx + w[j];
				mx = max(mx, w[j]);
			}
			for(int j = r - 1; j >= i; j --) mxsuf[j] = max(mxsuf[j], mxsuf[j + 1]);
		}
	}
//	for(int i = 1; i <= n; i ++) cout<<mxsuf[i]<<" ";
//	cout<<"\n";
	while(m --) {
		int l, r, k; cin>>l>>r>>k;
		int bl = (l - 1) / B, br = (r - 1) / B;
		if(bl == br) {
			int mx = 0, ans = 0;
			for(int i = l; i <= r; i ++) {
				if(mx > w[i]) ans = max(ans, w[i] + mx);
				mx = max(mx, w[i]);
			}
			cout<<(ans <= k)<<"\n";
			continue;
		}
		int ans = 0, mx = 0;
		for(int i = l; i <= bl * B + B; i ++) {
			if(mx > w[i]) ans = max(ans, w[i] + mx);
			mx = max(mx, w[i]);
		}
		for(int b = bl + 1; b < br; b ++) {
			int pos = b * B;
			for(int binl = b * B + 1, binr = b * B + B; binl <= binr; ) {
				int mid = (binl + binr) / 2;
				if(get(b * B + 1, mid) < mx) binl = mid + 1, pos = mid;
				else binr = mid - 1;
			}
			if(pos >= b * B + 1) ans = max(ans, get(b * B + 1, pos) + mx);
			if(pos < b * B + B) ans = max(ans, mxsuf[pos + 1]);
			mx = max(mx, get(b * B + 1, b * B + B));
		}
		for(int i = br * B + 1; i <= r; i ++) {
			if(mx > w[i]) ans = max(ans, w[i] + mx);
			mx = max(mx, w[i]);
		}
		cout<<(ans <= k)<<"\n";
	}
	
}
  
signed main() {		
 
    ios_base::sync_with_stdio(false);   
    cin.tie(0);cout.tie(0); 
   	
    int ttt = 1;
//    cin>>ttt;

    for(int i=1; i<=ttt; i++) { Baizho(); }
}

Compilation message

sortbooks.cpp: In function 'void Baizho()':
sortbooks.cpp:55:49: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   55 |    sta[j][i] = max(sta[j-1][i], sta[j-1][i+(1<<j-1)]);
      |                                                ~^~
sortbooks.cpp:60:39: warning: unused variable 'ans' [-Wunused-variable]
   60 |    int r = min(n, i + B - 1), mx = 0, ans = 0;
      |                                       ^~~
sortbooks.cpp: In function 'void Freopen(std::string)':
sortbooks.cpp:34:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   34 | void Freopen(string Key){ freopen((Key+".in").c_str(), "r", stdin); freopen((Key+".out").c_str(), "w", stdout); }
      |                           ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sortbooks.cpp:34:76: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   34 | void Freopen(string Key){ freopen((Key+".in").c_str(), "r", stdin); freopen((Key+".out").c_str(), "w", stdout); }
      |                                                                     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 3164 KB Output is correct
2 Correct 1 ms 1116 KB Output is correct
3 Correct 1 ms 7260 KB Output is correct
4 Correct 1 ms 5212 KB Output is correct
5 Correct 1 ms 7260 KB Output is correct
6 Correct 1 ms 7260 KB Output is correct
7 Correct 2 ms 7260 KB Output is correct
8 Correct 2 ms 7260 KB Output is correct
9 Correct 1 ms 7260 KB Output is correct
10 Correct 1 ms 7260 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 3164 KB Output is correct
2 Correct 1 ms 1116 KB Output is correct
3 Correct 1 ms 7260 KB Output is correct
4 Correct 1 ms 5212 KB Output is correct
5 Correct 1 ms 7260 KB Output is correct
6 Correct 1 ms 7260 KB Output is correct
7 Correct 2 ms 7260 KB Output is correct
8 Correct 2 ms 7260 KB Output is correct
9 Correct 1 ms 7260 KB Output is correct
10 Correct 1 ms 7260 KB Output is correct
11 Correct 3 ms 9308 KB Output is correct
12 Correct 4 ms 11356 KB Output is correct
13 Correct 5 ms 11352 KB Output is correct
14 Correct 6 ms 11356 KB Output is correct
15 Correct 6 ms 11592 KB Output is correct
16 Correct 6 ms 11352 KB Output is correct
17 Correct 6 ms 11352 KB Output is correct
18 Correct 6 ms 11356 KB Output is correct

Subtask #3
0 / 13.0

# Verdict Execution time Memory Grader output
1 Runtime error 19 ms 9044 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #4
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 418 ms 14928 KB Output is correct
2 Correct 1221 ms 14980 KB Output is correct
3 Correct 655 ms 14736 KB Output is correct
4 Correct 493 ms 14932 KB Output is correct
5 Correct 398 ms 14884 KB Output is correct
6 Correct 1412 ms 14988 KB Output is correct
7 Correct 1433 ms 15048 KB Output is correct
8 Correct 961 ms 14916 KB Output is correct
9 Correct 46 ms 9552 KB Output is correct
10 Correct 889 ms 14856 KB Output is correct

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 3164 KB Output is correct
2 Correct 1 ms 1116 KB Output is correct
3 Correct 1 ms 7260 KB Output is correct
4 Correct 1 ms 5212 KB Output is correct
5 Correct 1 ms 7260 KB Output is correct
6 Correct 1 ms 7260 KB Output is correct
7 Correct 2 ms 7260 KB Output is correct
8 Correct 2 ms 7260 KB Output is correct
9 Correct 1 ms 7260 KB Output is correct
10 Correct 1 ms 7260 KB Output is correct
11 Correct 3 ms 9308 KB Output is correct
12 Correct 4 ms 11356 KB Output is correct
13 Correct 5 ms 11352 KB Output is correct
14 Correct 6 ms 11356 KB Output is correct
15 Correct 6 ms 11592 KB Output is correct
16 Correct 6 ms 11352 KB Output is correct
17 Correct 6 ms 11352 KB Output is correct
18 Correct 6 ms 11356 KB Output is correct
19 Correct 1654 ms 18192 KB Output is correct
20 Correct 1637 ms 18080 KB Output is correct
21 Execution timed out 3008 ms 18192 KB Time limit exceeded
22 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 3164 KB Output is correct
2 Correct 1 ms 1116 KB Output is correct
3 Correct 1 ms 7260 KB Output is correct
4 Correct 1 ms 5212 KB Output is correct
5 Correct 1 ms 7260 KB Output is correct
6 Correct 1 ms 7260 KB Output is correct
7 Correct 2 ms 7260 KB Output is correct
8 Correct 2 ms 7260 KB Output is correct
9 Correct 1 ms 7260 KB Output is correct
10 Correct 1 ms 7260 KB Output is correct
11 Correct 3 ms 9308 KB Output is correct
12 Correct 4 ms 11356 KB Output is correct
13 Correct 5 ms 11352 KB Output is correct
14 Correct 6 ms 11356 KB Output is correct
15 Correct 6 ms 11592 KB Output is correct
16 Correct 6 ms 11352 KB Output is correct
17 Correct 6 ms 11352 KB Output is correct
18 Correct 6 ms 11356 KB Output is correct
19 Runtime error 19 ms 9044 KB Execution killed with signal 11
20 Halted 0 ms 0 KB -