Submission #79728

#	Time	Username	Problem	Language	Result	Execution time	Memory
79728		KLPP	Relativnost (COCI15_relativnost)	C++14	42 / 140	1267 ms	33792 KiB

relativnost

#include<iostream>
#include<algorithm>
#include<vector>

using namespace std;
typedef long long int lld;
#define MOD 10007
int n,c;
lld Segtree[1000000][30];
lld A[1000000];
lld B[1000000];
void build(int a, int b, int node){
	if(a==b){
		for(int i=0;i<=c;i++){
			Segtree[node][i]=0;
		}
		Segtree[node][0]=B[a];
		Segtree[node][1]=A[a];
		return;
	}
	int mid=(a+b)/2;
	build(a,mid,2*node);
	build(mid+1,b,2*node+1);
	for(int i=0;i<=c;i++){
		Segtree[node][i]=0;
	}
	for(int i=0;i<=c;i++){
		for(int j=0;j<=c;j++){
			Segtree[node][min(i+j,c)]+=Segtree[2*node][i]*Segtree[2*node+1][j];
			Segtree[node][min(i+j,c)]%=MOD;
		}
	}
}
void update(int a,int b, int node, int x){
	//cout<<a<<" "<<b<<endl;
	if(x<a || b<x)return;
	if(a==b){
		for(int i=0;i<=c;i++){
			Segtree[node][i]=0;
		}
		Segtree[node][0]=B[a];
		Segtree[node][1]=A[a];
		return;
	}
	int mid=(a+b)/2;
	update(a,mid,2*node,x);
	update(mid+1,b,2*node+1,x);
	for(int i=0;i<=c;i++){
		Segtree[node][i]=0;
	}
	for(int i=0;i<=c;i++){
		for(int j=0;j<=c;j++){
			Segtree[node][min(i+j,c)]+=Segtree[2*node][i]*Segtree[2*node+1][j];
			Segtree[node][min(i+j,c)]%=MOD;
		}
	}
}

int main(){
	cin>>n>>c;
	for(int i=0;i<n;i++)cin>>A[i];
	for(int i=0;i<n;i++)cin>>B[i];
	build(0,n-1,1);
	int q;
	cin>>q;
	while(q--){
		int x;
		cin>>x;
		x--;
		lld y,z;
		cin>>y>>z;
		A[x]=y;
		B[x]=z;
		update(0,n-1,1,x);
		cout<<Segtree[1][c]<<endl;
	}
	return 0;
}

• Subtask 1: 42 / 140