LOJ#6029「雅礼集训 2017 Day1」市场

https://loj.ac/p/6029

知识点：1.区间除法 （极限   ，势能分析）

　　　　2.除法 -> 减法 （类似有乘法 -> 加法 ，除法 -> 减法, 求幂->乘法）

　　　　3.极限   最多可能操作次数

#include <bits/stdc++.h>
#define int long long 
using namespace std;
int n,m;
int a[100010];
int tre[400010],lazy[400010],maxn[400010],minn[400010];
int cal (int num,int k)
{
    if(num >= 0)
    {
        return num - (num / k);
    }
    else if(num < 0)
    {
        int h = -num;
        int cha = h - ((h + k - 1) / k);
        return -cha;
    }
}
void down(int t,int l,int r,int k)
{
    tre[t] += (r - l + 1) * k;
    lazy[t] += k;
    maxn[t] += k;
    minn[t] += k;
    return ;
}
void up(int t,int l,int r)
{
    int mid = (l + r) >> 1;
    down(t << 1,l,mid,lazy[t]);
    down((t << 1) + 1,mid + 1,r,lazy[t]);
    lazy[t] = 0;
    return;
} 
void built(int t,int l,int r)
{
    if(l == r)
    {
        maxn[t] = a[l];
        minn[t] = a[l];
        tre[t] = a[l];
        lazy[t] = 0;
        return ;
    }
    int mid = (l + r) >> 1;
    built(t << 1,l,mid);
    built((t << 1) + 1,mid + 1,r);
    tre[t] = tre[t << 1] + tre[(t << 1) + 1];
    maxn[t] = max(maxn[t << 1],maxn[(t << 1) + 1]);
    minn[t] = min(minn[t << 1],minn[(t << 1) + 1]);
    return ;
}
void updatajia(int t,int l,int r,int L,int R,int k)
{
    if(L <= l && r <= R)
    {
        tre[t] += (r - l + 1) * k;
        lazy[t] += k;
        maxn[t] += k;
        minn[t] += k;
        return; 
    }
    int mid = (l + r) >> 1;
    up(t,l,r);
    if(L <= mid)updatajia(t << 1,l,mid, L,R,k);
    if(mid < R)updatajia((t << 1) + 1,mid + 1,r,L,R,k);
    tre[t] = tre[t << 1] + tre[(t << 1) + 1];
    maxn[t] = max(maxn[t << 1],maxn[(t << 1) + 1]);
    minn[t] = min(minn[t << 1],minn[(t << 1) + 1]);
    return;
}
int query(int t,int l,int r,int L,int R)
{
    if(L <= l && r <= R)
    {
        return tre[t];
    }
    int mid = (l + r) >> 1;
    up(t,l,r);
    int ret = 0;
    if(L <= mid)ret += query(t << 1,l,mid,L,R);
    if(mid < R)ret += query((t << 1) + 1,mid + 1,r,L,R);
    return ret; 
}
int querymin(int t,int l,int r,int L,int R)
{
    if(L <= l && r <= R)
    {
        return minn[t];
    }
    int mid = (l + r) >> 1;
    up(t,l,r);
    int ret = 999999999;
    if(L <= mid)ret = min(ret,querymin(t << 1,l,mid,L,R));
    if(mid < R)ret = min(ret,querymin((t << 1) + 1,mid + 1,r,L,R));
    return ret; 
}
void updatachu(int t,int l,int r,int L,int R,int k)
{
    if(L <= l && r <= R)
    {
        int maxcha = cal(maxn[t],k);
        int mincha = cal(minn[t],k);
        if(maxcha == mincha)
        {
            int kk = maxcha;
            tre[t] += (r - l + 1) * (-kk);
            lazy[t] += (-kk);
            maxn[t] += (-kk);
            minn[t] += (-kk);
            return;
        }
    }
    int mid = (l + r) >> 1;
    up(t,l,r);
    if(L <= mid)updatachu(t << 1,l,mid,L,R,k);
    if(mid < R)updatachu((t << 1) + 1,mid + 1,r,L,R,k);
    tre[t] = tre[t << 1] + tre[(t << 1) + 1];
    maxn[t] = max(maxn[t << 1],maxn[(t << 1) + 1]);
    minn[t] = min(minn[t << 1],minn[(t << 1) + 1]);
    //lazy not ;
    return ;
}
signed main()
{
    scanf("%lld%lld",&n,&m);
    for(int i = 1;i <= n;i++)
    {
        scanf("%lld",&a[i]);
    }
    int x,y,j,z;
    built(1,1,n);
    while(m--)
    {
        scanf("%lld%lld%lld",&x,&y,&j);
        if(x == 1)
        {
            scanf("%lld",&z);
            updatajia(1,1,n,y + 1,j + 1,z);    
        }    
        else if(x == 2)
        {
            scanf("%lld",&z);
            updatachu(1,1,n,y + 1,j + 1,z);
        }
        else if(x == 3)
        {
            printf("%lld
",querymin(1,1,n,y + 1,j + 1));
        }
        else if(x == 4)
        {
            printf("%lld
",query(1,1,n,y + 1,j + 1));
        }
    }
    return 0;
}