Submission #498497

# Submission time Handle Problem Language Result Execution time Memory
498497 2021-12-25T10:46:23 Z beksultan04 Divide and conquer (IZhO14_divide) C++14
100 / 100
121 ms 4704 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 int long long
#define pii pair<int,int>
#define ret return
#define fr first
#define sc second
#define OK puts("OK");
#define NO puts("NO");
#define YES puts("YES");
#define all(s) s.begin(),s.end()
#define allr(s) s.rbegin(),s.rend()
#define nosol puts("-1");
#define pb push_back
#define endi puts("");
const int N = 1e6+12,INF = 1e15+7;
#define ordered_set tree <int, null_type,less<int>, rb_tree_tag,tree_order_statistics_node_update>
int p[N],der[N],g[N],x[N];

void update(int v,int l,int r,int pos,int x){
	if (l == r){
		der[v] = x;
		ret ;
	}
	int m = l+r>>1;
	if (m < pos){
		update((v<<1)+1,m+1,r,pos,x);
	}
	else update(v<<1,l,m,pos,x);
	der[v] = max(der[v<<1],der[(v<<1)+1]);
}

int get_pos(int v,int l,int r,int x){
	if (l == r)ret l;
	int m = l+r>>1;
	if (der[(v<<1)+1] >= x)ret get_pos((v<<1)+1,m+1,r,x);
	ret get_pos(v<<1,l,m,x);
}


main(){
	int n,i,a,b,ans=0;
	cin>>n;
	for (i=1;i<=n;++i){
		cin>>x[i]>>a>>b;
		g[i] = g[i-1]+a;
		p[i] = p[i-1]+b;
		update(1,1,n,i,p[i]-x[i]);
	}
	for (i=1;i<=n;++i){
		int j = get_pos(1,1,n,p[i-1]-x[i]);
		ans = max(ans,g[j]-g[i-1]);
	}
	cout <<ans;
	
}
 
 

Compilation message

divide.cpp: In function 'void update(long long int, long long int, long long int, long long int, long long int)':
divide.cpp:28:11: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   28 |  int m = l+r>>1;
      |          ~^~
divide.cpp: In function 'long long int get_pos(long long int, long long int, long long int, long long int)':
divide.cpp:38:11: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   38 |  int m = l+r>>1;
      |          ~^~
divide.cpp: At global scope:
divide.cpp:44:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   44 | main(){
      | ^~~~
# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 352 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 0 ms 332 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 332 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 352 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 0 ms 332 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 2 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 2 ms 332 KB Output is correct
22 Correct 2 ms 332 KB Output is correct
23 Correct 6 ms 460 KB Output is correct
24 Correct 5 ms 460 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 352 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 0 ms 332 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 2 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 2 ms 332 KB Output is correct
22 Correct 2 ms 332 KB Output is correct
23 Correct 6 ms 460 KB Output is correct
24 Correct 5 ms 460 KB Output is correct
25 Correct 6 ms 460 KB Output is correct
26 Correct 7 ms 776 KB Output is correct
27 Correct 9 ms 716 KB Output is correct
28 Correct 46 ms 2448 KB Output is correct
29 Correct 54 ms 2508 KB Output is correct
30 Correct 121 ms 4616 KB Output is correct
31 Correct 88 ms 4640 KB Output is correct
32 Correct 86 ms 4676 KB Output is correct
33 Correct 96 ms 4600 KB Output is correct
34 Correct 94 ms 4684 KB Output is correct
35 Correct 117 ms 4704 KB Output is correct
36 Correct 103 ms 4644 KB Output is correct