Submission #594705

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
594705	2022-07-12 20:34:50	Bench0310	Fish (IOI08_fish)	C++17	100 / 100	828 ms	28856 KiB

fish

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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
int mod;
int add(int a,int b){return a+b-(a+b>=mod?mod:0);}
int sub(int a,int b){return a-b+(a-b<0?mod:0);}
int mul(int a,int b){return (a*b)%mod;}
const int N=500005;
int tree[4*N];
array<int,2> fish[N];
int newid[N];
bool islast[N];
int lenlast[N];
int lenprv[N];
int nxtlast[N];
int lenone[N];
void update(int idx,int l,int r,int pos,int x)
{
    if(l==r) tree[idx]=add(tree[idx],x);
    else
    {
        int m=(l+r)/2;
        if(pos<=m) update(2*idx,l,m,pos,x);
        else update(2*idx+1,m+1,r,pos,x);
        tree[idx]=mul(tree[2*idx],tree[2*idx+1]);
    }
 
 
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