Submission #253952

#	Time	Username	Problem	Language	Result	Execution time	Memory
253952		kartel	Relativnost (COCI15_relativnost)	C++14	0 / 140	3181 ms	65540 KiB

relativnost

#include <bits/stdc++.h>
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
#define in(x) freopen(x, "r", stdin)
#define out(x) freopen(x, "w", stdout)
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
//#pragma GCC optimize("Ofast,nso-stack-protector,unroll-loops,fast-math,-O3")
//#define F first
//#define S second
#define pb push_back
#define N +100500
#define N +100500
#define M ll(1e4 + 7)
#define sz(x) (int)x.size()
#define re return
#define oo ll(1e9)
#define el '\n'
#define Max_A int(1e9)
//#define el endl
#define pii pair <int, int>
#define err ld(1e-9)
#define Max_S int(3e6)
#define last(x) x.back()
#define all(x) (x).begin(), (x).end()
#define arr_all(x, n) (x + 1), (x + 1 + n)
using namespace std;
//using namespace __gnu_pbds;
//typedef tree <int, null_type, less_equal <int> , rb_tree_tag, tree_order_statistics_node_update> ordered_set;
typedef long long ll;
typedef short int si;
typedef long double ld;

si t[4 * N][21];
int a[N], b[N], new_a, new_b, q, n, i, id;
si c;

si sum(si a, si b) {return (int(a) + int(b)) % M;}
si mult(si a, si b) {return (int(a) * int(b)) % M;}

void calc(int v, si lv, si rv)
{
    for (si cnt = 0; cnt <= c; cnt++) t[v][cnt] = 0;

    for (si left = 0; left <= c; left++)
      for (si right = 0; right <= c; right++)
    {
        si new_cnt = min(int(c), int(left + right));

        t[v][new_cnt] = sum(t[v][new_cnt], mult(t[lv][left], t[rv][right]));
    }
}

void build(int v, si l, si r)
{
    if (l == r) {t[v][0] = b[l]; t[v][1] = a[l]; return;}

    int md = (l + r) >> 1;

    build(v * 2, l, md);
    build(v * 2 + 1, md + 1, r);

    calc(v, v * 2, v * 2 + 1);
}

void upd(int v, si l, si r, si ps)
{
    if (l == r) {t[v][0] = b[l]; t[v][1] = a[l]; return;}

    int md = (l + r) >> 1;

    if (ps <= md) upd(v * 2, l, md, ps);
             else upd(v * 2 + 1, md + 1, r, ps);

    calc(v, v * 2, v * 2 + 1);
}

int main()
{
    cout.precision(2);
    srand(time(0));
    ios_base::sync_with_stdio(0);
    iostream::sync_with_stdio(0);
    ios::sync_with_stdio(0);
    cin.tie(NULL);
    cout.tie(NULL);
//
//    in("input.txt");
//    out("output.txt");

    cin >> n >> c;
    for (i = 1; i <= n; i++) cin >> a[i] >> b[i];

    build(1, 1, n);

    cin >> q;
    while (q--)
    {
        cin >> id >> new_a >> new_b;

        a[id] = new_a;
        b[id] = new_b;

        upd(1, 1, n, id);

        cout << t[1][c] << el;
    }
}

• Subtask 1: 0 / 140