Submission #164320

#	Time	Username	Problem	Language	Result	Execution time	Memory
164320		beso123	Relativnost (COCI15_relativnost)	C++14	0 / 140	2000 ms	65536 KiB

relativnost

#include <bits/stdc++.h>
#define int long long
using namespace std;
int n,m,Q,a[100005],b[100005],t[400005][30],sum;
void update(int v){
for(int k=0;k<=m;k++)
        t[v][k]=0;
  for(int i=0;i<=m;++i)
    for(int j=0;j<=m;++j)
      t[v][min(i+j,m)]+=(t[v*2][i]*t[v*2+1][j]);
  }
void Build(int v,int i,int j){
    if(i==j){
        t[v][0]=b[i];
        t[v][1]=a[i];
        return;
    }
    int mid=(i+j)/2;
    Build(v*2,i,mid);
    Build(v*2+1,mid+1,j);
   update(v);
}
void UPD(int v,int i,int j,int pos){
    if(i==j){
        t[v][0]=b[i];
        t[v][1]=a[i];
        return;
    }
    int mid=(i+j)/2;
    if(pos<=mid)
        UPD(v*2,i,mid,pos);
    else
        UPD(v*2+1,mid+1,j,pos);
    update(v);
}
main(){
cin>>n>>m;
for(int k=1;k<=n;k++)
    cin>>a[k];
for(int k=1;k<=n;k++)
    cin>>b[k];
Build(1,1,n);
cin>>Q;
while(Q--){
   int x,na,nb;
   cin>>x>>na>>nb;
   a[x]=na;
   b[x]=na;
    UPD(1,1,n,x);
    cout<<t[1][m]<<endl;
}
return 0;
}

Compilation message (stderr)

relativnost.cpp:36:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main(){
      ^

• Subtask 1: 0 / 140