Submission #776375

#TimeUsernameProblemLanguageResultExecution timeMemory
776375Hacv16Sterilizing Spray (JOI15_sterilizing)C++17
80 / 100
5081 ms3460 KiB
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
const int MAX = 1e5 + 15;

inline ll get(void) {
    char c = getchar();
    while (c < '0' || c > '9')
        c = getchar();
    ll ret = 0;
    while (c >= '0' && c <= '9')
        ret = ret * 10 + (c - '0'), c = getchar();
    return ret;
}

ll n, q, k, v[MAX], seg[4 * MAX];

void build(int p, int l, int r){
	if(l == r){
		seg[p] = v[l];
		return;
	}

	int m = (l + r) >> 1, e = 2 * p, d = e + 1;
	build(e, l, m); build(d, m + 1, r);

	seg[p] = seg[e] + seg[d];
}

ll query(int a, int b, int p, int l, int r){
	if(a > r || b < l || seg[p] == 0) return 0;
	if(a <= l && r <= b) return seg[p];

	int m = (l + r) >> 1, e = 2 * p, d = e + 1;
	return query(a, b, e, l, m) + query(a, b, d, m + 1, r);
}

void update(int i, ll x, int p, int l, int r){
	if(l == r){
		seg[p] = x;	
		return;
	}

	int m = (l + r) >> 1, e = 2 * p, d = e + 1;

	if(i <= m) update(i, x, e, l, m);
	else update(i, x, d, m + 1, r);

	seg[p] = seg[e] + seg[d];
}

void spray(int a, int b, int p, int l, int r){
	if(seg[p] == 0 || a > r || b < l) return;
	if(l == r){ seg[p] /= k; return; }

	int m = (l + r) >> 1, e = 2 * p, d = e + 1;
	spray(a, b, e, l, m); spray(a, b, d, m + 1, r);

	seg[p] = seg[e] + seg[d];
}

int32_t main(void){
	n = get(); q = get(); k = get();

	for(int i = 1; i <= n; i++) v[i] = get();

	build(1, 1, n);

	while(q--){
		int op = get();

		if(op == 1){
			int i = get(), x = get();
			update(i, x, 1, 1, n);

		}else if(op == 2){
			int l = get(), r = get();
			spray(l, r, 1, 1, n);

		}else{
			int l = get(), r = get();
			cout << query(l, r, 1, 1, n) << '\n';
		}
	}

	exit(0);
}
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