oj.uz

Submission #226806

# Submission time Handle Problem Language Result Execution time Memory
226806 2020-04-25T13:23:13 Z errorgorn Fire (JOI20_ho_t5) C++14
1 / 100
 375 ms 262148 KB 
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/rope>
using namespace std;
using namespace __gnu_pbds;
using namespace __gnu_cxx;
#define ll long long
#define ii pair<ll,ll>
#define iii pair<ii,ll>
#define fi first
#define se second
#define endl '\n'
#define debug(x) cout << #x << " is " << x << endl;

#define rep(x,start,end) for(auto x=(start)-((start)>(end));x!=(end)-((start)>(end));((start)<(end)?x++:x--))
#define all(x) (x).begin(),(x).end()
#define sz(x) (int)(x).size()

ll MAX(ll a){return a;}
ll MIN(ll a){return a;}
template<typename... Args>
ll MAX(ll a,Args... args){return max(a,MAX(args...));}
template<typename... Args>
ll MIN(ll a,Args... args){return min(a,MIN(args...));}

#define indexed_set tree<ll,null_type,less<ll>,rb_tree_tag,tree_order_statistics_node_update>

struct node1d{
	int s,e,m;
	ll val=0,lazy=0;
	node1d *l=nullptr,*r=nullptr;
	node1d(int _s,int _e){
		s=_s,e=_e,m=s+e>>1;
	}
	
	ll propo(){
		val+=lazy*(e-s+1);
		if (s!=e){
			if (l==nullptr) l=new node1d(s,m),r=new node1d(m+1,e);
			l->lazy+=lazy,r->lazy+=lazy;
		}
		lazy=0;
		
		return val;
	}
	
	void update(int i,int j,ll k){
		if (s==i && e==j) lazy+=k;
		else{
			propo();
			
			if (j<=m) l->update(i,j,k);
			else if (m<i) r->update(i,j,k);
			else l->update(i,m,k),r->update(m+1,j,k);
			
			val=l->propo()+r->propo();
		}
	}
	
	ll query(int i,int j){
		propo();
		
		if (s==i && e==j) return val;
		else{			
			if (j<=m) return l->query(i,j);
			else if (m<i) return r->query(i,j);
			else return l->query(i,m)+r->query(m+1,j);
		}
	}
};

struct node2d{
	int s,e,m;
	node1d *seg=new node1d(-200005,200005);
	node2d *l,*r;
	
	node2d(int _s,int _e){
		s=_s,e=_e,m=s+e>>1;
		
		if (s!=e){
			l=new node2d(s,m);
			r=new node2d(m+1,e);
		}
	}
	
	void update(int i,int j,int i2,int j2,ll k){
		if (s==i && e==j) seg->update(i2,j2,k);
		else if (j<=m) l->update(i,j,i2,j2,k);
		else if (m<i) r->update(i,j,i2,j2,k);
		else l->update(i,m,i2,j2,k),r->update(m+1,j,i2,j2,k);
	}
	
	ll query(int i,int i2,int j2){ //we are only querying for a single slice
		//cout<<s<<" "<<e<<" "<<seg->query(i2,j2)<<endl;
		if (s==e) return seg->query(i2,j2);
		else if (i<=m) return seg->query(i2,j2)+l->query(i,i2,j2);
		else return seg->query(i2,j2)+r->query(i,i2,j2);
	}
}*rect=new node2d(0,400005),*diag=new node2d(0,400005);

int n,q;
int arr[200005];
int l[200005];
int r[200005];

vector<int> stk;

void tri(int i,int j,ll val){
	//cout<<i<<" "<<j<<" "<<val<<endl;
	if (j<i) return; //stupid shit
	
	diag->update(0,j-i,i,200005,val);
	rect->update(0,j-i,j+1,200005,-val);
}

int main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	
	cin>>n>>q;
	rep(x,1,n+1) cin>>arr[x];
	
	rep(x,1,n+1){
		while (!stk.empty() && arr[stk.back()]<arr[x]){
			r[stk.back()]=x-1;
			stk.pop_back();
		}
		
		stk.push_back(x);
	}
	while (!stk.empty()){
		r[stk.back()]=n;
		stk.pop_back();
	}
	
	rep(x,n+1,1){
		while (!stk.empty() && arr[stk.back()]<=arr[x]){
			l[stk.back()]=x+1;
			stk.pop_back();
		}
		
		stk.push_back(x);
	}
	while (!stk.empty()){
		l[stk.back()]=-200005; //yea
		stk.pop_back();
	}
	
	rep(x,1,n+1){
		tri(l[x],x-1,-arr[x]);
		tri(x+1,r[x],-arr[x]);
		tri(l[x],r[x],arr[x]);
	}
	
	int a,b,c;
	while (q--){
		cin>>a>>b>>c;
		
		//debug(rect->query(a,b,c));
		//debug(diag->query(a,b-a,c-a));
		
		cout<<rect->query(a,b,c)+diag->query(a,b-a,c-a)<<endl;
	}
}

Compilation message

ho_t5.cpp: In constructor 'node1d::node1d(int, int)':
ho_t5.cpp:34:16: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   s=_s,e=_e,m=s+e>>1;
               ~^~
ho_t5.cpp: In constructor 'node2d::node2d(int, int)':
ho_t5.cpp:79:16: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   s=_s,e=_e,m=s+e>>1;
               ~^~

Subtask #1
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 159 ms 175808 KB Output is correct
2 Correct 161 ms 180856 KB Output is correct
3 Correct 158 ms 180856 KB Output is correct
4 Correct 160 ms 180856 KB Output is correct
5 Correct 160 ms 180728 KB Output is correct
6 Correct 160 ms 180984 KB Output is correct
7 Correct 159 ms 180728 KB Output is correct
8 Correct 166 ms 180600 KB Output is correct
9 Correct 157 ms 180856 KB Output is correct
10 Correct 155 ms 180984 KB Output is correct
11 Correct 161 ms 180856 KB Output is correct
12 Correct 157 ms 180856 KB Output is correct
13 Correct 159 ms 178552 KB Output is correct
14 Correct 158 ms 178296 KB Output is correct
15 Correct 163 ms 178424 KB Output is correct
16 Correct 158 ms 178424 KB Output is correct
17 Correct 153 ms 178296 KB Output is correct
18 Correct 154 ms 178296 KB Output is correct
19 Correct 157 ms 178528 KB Output is correct
20 Correct 155 ms 178296 KB Output is correct
21 Correct 157 ms 178296 KB Output is correct
22 Correct 156 ms 178240 KB Output is correct
23 Correct 154 ms 178040 KB Output is correct
24 Correct 154 ms 177952 KB Output is correct
25 Correct 155 ms 177820 KB Output is correct
26 Correct 155 ms 178008 KB Output is correct
27 Correct 154 ms 178168 KB Output is correct
28 Correct 161 ms 178052 KB Output is correct
29 Correct 155 ms 178040 KB Output is correct
30 Correct 163 ms 178364 KB Output is correct
31 Correct 155 ms 177912 KB Output is correct
32 Correct 160 ms 178040 KB Output is correct

Subtask #2
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 159 ms 175808 KB Output is correct
2 Runtime error 375 ms 262148 KB Execution killed with signal 9 (could be triggered by violating memory limits)
3 Halted 0 ms 0 KB -

Subtask #3
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 159 ms 175808 KB Output is correct
2 Runtime error 366 ms 262148 KB Execution killed with signal 9 (could be triggered by violating memory limits)
3 Halted 0 ms 0 KB -

Subtask #4
0 / 6.0

# Verdict Execution time Memory Grader output
1 Runtime error 361 ms 262148 KB Execution killed with signal 9 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #5
0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 159 ms 175808 KB Output is correct
2 Correct 161 ms 180856 KB Output is correct
3 Correct 158 ms 180856 KB Output is correct
4 Correct 160 ms 180856 KB Output is correct
5 Correct 160 ms 180728 KB Output is correct
6 Correct 160 ms 180984 KB Output is correct
7 Correct 159 ms 180728 KB Output is correct
8 Correct 166 ms 180600 KB Output is correct
9 Correct 157 ms 180856 KB Output is correct
10 Correct 155 ms 180984 KB Output is correct
11 Correct 161 ms 180856 KB Output is correct
12 Correct 157 ms 180856 KB Output is correct
13 Correct 159 ms 178552 KB Output is correct
14 Correct 158 ms 178296 KB Output is correct
15 Correct 163 ms 178424 KB Output is correct
16 Correct 158 ms 178424 KB Output is correct
17 Correct 153 ms 178296 KB Output is correct
18 Correct 154 ms 178296 KB Output is correct
19 Correct 157 ms 178528 KB Output is correct
20 Correct 155 ms 178296 KB Output is correct
21 Correct 157 ms 178296 KB Output is correct
22 Correct 156 ms 178240 KB Output is correct
23 Correct 154 ms 178040 KB Output is correct
24 Correct 154 ms 177952 KB Output is correct
25 Correct 155 ms 177820 KB Output is correct
26 Correct 155 ms 178008 KB Output is correct
27 Correct 154 ms 178168 KB Output is correct
28 Correct 161 ms 178052 KB Output is correct
29 Correct 155 ms 178040 KB Output is correct
30 Correct 163 ms 178364 KB Output is correct
31 Correct 155 ms 177912 KB Output is correct
32 Correct 160 ms 178040 KB Output is correct
33 Runtime error 365 ms 262148 KB Execution killed with signal 9 (could be triggered by violating memory limits)
34 Halted 0 ms 0 KB -