Submission #98745

#	Time	Username	Problem	Language	Result	Execution time	Memory
98745		HellAngel	Relativnost (COCI15_relativnost)	C++14	140 / 140	2618 ms	18172 KiB

relativnost

#include <bits/stdc++.h>

using namespace std;

const int maxN = 1e5 + 10;
const int mod = 10007;

int n, c, q, a[maxN], b[maxN], f[maxN * 2][22];

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    cin >> n >> c;
    for (int i=0; i<n; ++i)
        cin >> a[i];
    for (int i=0; i<n; ++i)
        cin >> b[i];

    for (int i = 0; i < n; ++i)
    {
        f[i + n][1] = a[i] % mod;
        f[i + n][0] = b[i] % mod;
    }

    for (int x=n-1; x>=1; --x)
    {
        for (int i = 0; i <= c; ++i)
            f[x][i] = 0;
        for (int i=0; i<=c; ++i)
            for (int j=0; j<=c; ++j)
                f[x][min(i + j, c)] += (f[x * 2][i] * f[x * 2 + 1][j]) % mod;

        for (int i = 0; i <= c; ++i)
            f[x][i] %= mod;
    }

    cin >> q;
    while (q--)
    {
        int x;
        cin >> x;
        --x;
        cin >> a[x] >> b[x];
        x += n;
        for (int i=0; i<c; ++i)
            f[x][i] = 0;
        f[x][1] = a[x - n] % mod;
        f[x][0] = b[x - n] % mod;

        for (x /= 2; x > 0; x /= 2)
        {
            for (int i = 0; i <= c; ++i)
                f[x][i] = 0;
            for (int i=0; i<=c; ++i)
                for (int j=0; j<=c; ++j)
                    f[x][min(i + j, c)] += (f[x * 2][i] * f[x * 2 + 1][j]) % mod;

            for (int i = 0; i <= c; ++i)
                f[x][i] %= mod;
        }

        cout << f[1][c] << "\n";
    }
}

• Subtask 1: 140 / 140