Submission #165232

#	Time	Username	Problem	Language	Result	Execution time	Memory
165232		Atill83	Relativnost (COCI15_relativnost)	C++14	42 / 140	4098 ms	21496 KiB

relativnost

#include <bits/stdc++.h>
#define ff first
#define ss second
#define endl '\n'
using namespace std;
const long long INF = (long long) 1e18;
const int mod = (int) 1e4+7;
const int MAXN = (int) 3e5+5;

typedef long long ll;
typedef unsigned long long ull;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
ll n, c, q;
ll a[MAXN], b[MAXN];
ll dp[MAXN][25];
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);cout.tie(nullptr);

    #ifdef Local
        freopen("../IO/int.txt","r",stdin);
        freopen("../IO/out.txt","w",stdout);
    #endif

    cin>>n>>c;

    for(int i = 1; i <= n; i++){
        cin>>a[i];
    }
    ll cur = 1;
    for(int i = 1; i <= n; i++){
        cin>>b[i];
        cur *= (a[i] + 1)*(b[i] + 1) - 1;
        cur %= mod;
    }
    /*for(int i = 1; i <= n; i++){
        for(int j = 1; j < c; j++){
            dp[i][j] = dp[i - 1][j - 1]*(b[i] + 1)%mod*a[i]% mod;
            dp[i][j] += dp[i - 1][j]*(b[i])%mod;
            dp[i][j] %= mod; 
        }
    }*/
    cin>>q;
    while(q--){
        int kis, an, bn;
        cin>>kis>>an>>bn;
        a[kis] = an;
        b[kis] = bn;
        ll cur = 1;
        dp[0][0] = 1;
        for(int i = 1; i <= n; i++){
            cur *= a[i] + b[i];
            cur %= mod;
        }
        for(int i = 1; i <= n; i++){
            dp[i][0] = dp[i - 1][0]*b[i]%mod;
            dp[i][0] %= mod;
            //cout<<i<<endl;
            //cout<<dp[i][0]<<" ";
            for(int j = 1; j < c; j++){
                dp[i][j] = dp[i - 1][j - 1]*a[i]% mod;
                dp[i][j] += dp[i - 1][j]*b[i]%mod;
                dp[i][j] %= mod;
            //    cout<<dp[i][j]<<" ";
            }
            //cout<<endl;
        }
        ll cik = 0;
        for(int j = 0; j < c; j++){
            cik += dp[n][j];
            cik %= mod;
        }
        cout<<(cur - cik + mod)%mod<<endl;
    }
    #ifdef Local
        cout<<endl<<fixed<<setprecision(2)<<1000.0 * clock() / CLOCKS_PER_SEC<< " milliseconds ";
    #endif
}

• Subtask 1: 42 / 140