Wa 60pts求助
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Wa 60pts求助
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LYsl楼主2025/7/19 15:06
#include <bits/stdc++.h>
#define ll long long
#define AC 0
using namespace std;
const ll MAXN = 1e5 + 5;
ll n, p;  
ll arr[MAXN];
ll tree[MAXN * 4], add[MAXN * 4], mul[MAXN * 4];
void update(ll root) 
{
    tree[root] = tree[root << 1] + tree[root << 1 | 1];
}
void build(ll l, ll r, ll root) 
{
    add[root] = 0;
    mul[root] = 1;
    if (l == r) 
	{
        tree[root] = arr[l] % p;
        return ;
    }
    ll mid = l + ((r - l) >> 1);
    build(l, mid, root << 1);
    build(mid + 1, r, root << 1 | 1);
    update(root);
}
void pushdown(ll l, ll r, ll root) 
{
    ll mid = (l + r) >> 1;
    if (mul[root] != 1 || add[root] != 0) 
    {
        tree[root<<1] = (tree[root<<1] * mul[root] + add[root] * (mid - l + 1)) % p;
        mul[root<<1] = (mul[root<<1] * mul[root]) % p;
        add[root<<1] = (add[root<<1] * mul[root] + add[root]) % p;        
        tree[root<<1|1] = (tree[root<<1|1] * mul[root] + add[root] * (r - mid)) % p;
        mul[root<<1|1] = (mul[root<<1|1] * mul[root]) % p;
        add[root<<1|1] = (add[root<<1|1] * mul[root] + add[root]) % p;
        mul[root] = 1;
        add[root] = 0;
    }
}
void modify_mul(ll x, ll y, ll val, ll l, ll r, ll root) 
{
    if (x <= l && r <= y) 
    {
        tree[root] = (tree[root] * val) % p;
        mul[root] = (mul[root] * val) % p;
        add[root] = (add[root] * val) % p;
        return;
    }
    pushdown(l, r, root);
    ll mid = (l + r) >> 1;
    if (x <= mid)
    {
        modify_mul(x, y, val, l, mid, root << 1);
    } 
    if (y > mid)
    {
        modify_mul(x, y, val, mid + 1, r, root << 1 | 1);
    } 
    update(root);
}
void modify_add(ll x, ll y, ll val, ll l, ll r, ll root) 
{
    if (x <= l && r <= y) 
    {
        tree[root] = (tree[root] + val * (r - l + 1)) % p;
        add[root] = (add[root] + val) % p;
        return;
    }
    pushdown(l, r, root);
    ll mid = (l + r) >> 1;
    if (x <= mid)
    {
        modify_add(x, y, val, l, mid, root << 1);
    } 
    if (y > mid)
    {
        modify_add(x, y, val, mid + 1, r, root << 1 | 1);
    } 
    update(root);
}
ll query(ll x, ll y, ll l, ll r, ll root) 
{
    if (x <= l && r <= y)
    {
        return tree[root];
    } 
    ll mid = l + ((r - l) >> 1);
    pushdown(l, r, root);
    ll sum = 0;
    if (x <= mid)
	{
		sum += query(x, y, l, mid, root << 1);
	} 
    if (y > mid)
	{
		sum += query(x, y, mid + 1, r, root << 1 | 1);
	} 
    return sum % p;
}
int main() 
{
    cin >> n >> p;  
    for (int i = 1; i <= n; i++) 
    {
        cin >> arr[i];
    }
    build(1, n, 1);
    ll m;
    cin >> m;
    while (m--) 
    {
        ll op, t, g, c;
        cin >> op;
        if (op == 3) 
        {
            cin >> t >> g;
            cout << query(t, g, 1, n, 1) % p << endl;
        } 
        else 
        {
            cin >> t >> g >> c;
            if (op == 1) 
            {
                modify_mul(t, g, c % p, 1, n, 1);
            } 
            else 
            {
                modify_add(t, g, c % p, 1, n, 1);
            }
        }
    }
    return AC;
}

码风良好

2025/7/19 15:06
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