oj.uz

Submission #889975

# Submission time Handle Problem Language Result Execution time Memory
889975 2023-12-20T10:28:58 Z vjudge1 Hedgehog Daniyar and Algorithms (IZhO19_sortbooks) C++17
34 / 100
 3000 ms 18260 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 = 360;

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 3160 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 2 ms 7260 KB Output is correct
7 Correct 1 ms 7260 KB Output is correct
8 Correct 1 ms 7260 KB Output is correct
9 Correct 2 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 3160 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 2 ms 7260 KB Output is correct
7 Correct 1 ms 7260 KB Output is correct
8 Correct 1 ms 7260 KB Output is correct
9 Correct 2 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 11588 KB Output is correct
13 Correct 5 ms 11356 KB Output is correct
14 Correct 6 ms 11592 KB Output is correct
15 Correct 6 ms 11356 KB Output is correct
16 Correct 6 ms 11352 KB Output is correct
17 Correct 6 ms 11572 KB Output is correct
18 Correct 7 ms 11580 KB Output is correct

Subtask #3
0 / 13.0

# Verdict Execution time Memory Grader output
1 Runtime error 19 ms 9052 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 309 ms 15028 KB Output is correct
2 Correct 828 ms 14928 KB Output is correct
3 Correct 451 ms 14684 KB Output is correct
4 Correct 331 ms 14872 KB Output is correct
5 Correct 264 ms 14928 KB Output is correct
6 Correct 879 ms 14816 KB Output is correct
7 Correct 884 ms 15068 KB Output is correct
8 Correct 623 ms 14684 KB Output is correct
9 Correct 51 ms 9564 KB Output is correct
10 Correct 614 ms 15188 KB Output is correct

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 3160 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 2 ms 7260 KB Output is correct
7 Correct 1 ms 7260 KB Output is correct
8 Correct 1 ms 7260 KB Output is correct
9 Correct 2 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 11588 KB Output is correct
13 Correct 5 ms 11356 KB Output is correct
14 Correct 6 ms 11592 KB Output is correct
15 Correct 6 ms 11356 KB Output is correct
16 Correct 6 ms 11352 KB Output is correct
17 Correct 6 ms 11572 KB Output is correct
18 Correct 7 ms 11580 KB Output is correct
19 Correct 1132 ms 18164 KB Output is correct
20 Correct 1087 ms 18260 KB Output is correct
21 Execution timed out 3023 ms 18152 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 3160 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 2 ms 7260 KB Output is correct
7 Correct 1 ms 7260 KB Output is correct
8 Correct 1 ms 7260 KB Output is correct
9 Correct 2 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 11588 KB Output is correct
13 Correct 5 ms 11356 KB Output is correct
14 Correct 6 ms 11592 KB Output is correct
15 Correct 6 ms 11356 KB Output is correct
16 Correct 6 ms 11352 KB Output is correct
17 Correct 6 ms 11572 KB Output is correct
18 Correct 7 ms 11580 KB Output is correct
19 Runtime error 19 ms 9052 KB Execution killed with signal 11
20 Halted 0 ms 0 KB -