Submission #98702

#	Time	Username	Problem	Language	Result	Execution time	Memory
98702		Dat160601	Relativnost (COCI15_relativnost)	C++17	112 / 140	4075 ms	23288 KiB

relativnost

#include <bits/stdc++.h>
using namespace std;
#define mp make_pair
#define pb push_back
#define fi first
#define se second

const int N = 1e5 + 7, mod = 10007;

struct node{
	int ret[21];
} it[4 * N];

int n, c, q, a, b, x;
int pa[N], pb[N];

int read(){
	char p;
	while((p = getchar())){
		if(p < '0' || p > '9') continue;
		break;
	}
	int ret = p - '0';
	while((p = getchar())){
		if(p >= '0' && p <= '9'){
			ret *= 10;
			ret += p - '0';
		}
		else break;
	}
	return ret;
}

int dg[10];

void print(int x){
	int cur = 0;
	if(x == 0) putchar('0');
	while(x > 0){
		cur++;
		dg[cur] = x % 10;
		x /= 10;
	}
	for(int i = cur; i >= 1; i--){
		char p = '0' + dg[i];
		putchar(p);
	}
	putchar('\n');
}

void add(int &a, int b){
	a += b;
	a %= mod;
}

node merge(node a, node b){
	node res;
	for(int i = 0; i <= c; i++) res.ret[i] = 0;
	for(int i = 0; i <= c; i++){
		for(int j = 0; j <= c; j++){
			add(res.ret[min(c, i + j)], a.ret[i] * b.ret[j]);
		}
	}
	return res;
}

void update(int k, int l, int r, int pos, int a, int b){
	if(l > pos || r < pos) return;
	if(l == r){
		it[k].ret[0] = b;
		it[k].ret[1] = a;
		return;
	}
	int mid = (l + r) >> 1;
	update(k << 1, l, mid, pos, a, b);
	update(k << 1 | 1, mid + 1, r, pos, a, b);
	it[k] = merge(it[k << 1], it[k << 1 | 1]);
}

int main(){
	n = read(), c = read();
	for(int i = 1; i <= n; i++) pa[i] = read(), pa[i] %= mod;
	for(int i = 1; i <= n; i++){
		pb[i] = read(), pb[i] %= mod;
		update(1, 1, n, i, pa[i], pb[i]);
	}
	q = read();
	while(q --){
		x = read(), a = read(), b = read();
		a %= mod, b %= mod;
		update(1, 1, n, x, a, b);
		print(it[1].ret[c]);
	}
}

• Subtask 1: 112 / 140