学步园

多校第四场

#include <cstdio>
#include <cstring>
#include <iostream>
#include <algorithm>
using namespace std;
typedef long long LL;
#define Ls rt<<1
#define Rs  rt<<1|1
#define Lson l,m,rt<<1
#define Rson m+1,r,rt<<1|1
int const MAXN = 1000010;
struct Tree{
    int l,r;
    int v,add;
}tree[MAXN<<2];
int Gcd(int a,int b){
    if(!b) return a;
    return Gcd(b,a%b);
}
inline void PushUp(int rt){
    if(tree[Ls].v == tree[Rs].v)tree[rt].v = tree[Ls].v;
    else tree[rt].v = -1 ;
}
inline void PushDown(int rt){
    if(tree[rt].add != -1){
        tree[Ls].add = tree[Rs].add = tree[rt].add;
        tree[Ls].v = tree[Rs].v = tree[rt].add;
        tree[rt].add = -1;
    }
}
void build(int l,int r,int rt){
    tree[rt].add = -1;
    if(l == r){
        scanf("%d",&tree[rt].v);
        return ;
    }
    int m = (l + r) >> 1;
    build(Lson);
    build(Rson);
    PushUp(rt);
}
void Update(int L,int R,int x,int l,int r,int rt){
    if(l >= L && r <= R){
        tree[rt].v = tree[rt].add = x;
        return ;
    }
    PushDown(rt);
    int m = (l+r) >> 1 ;
    if(L <= m) Update(L,R,x,Lson);
    if(R > m) Update(L,R,x,Rson);
    PushUp(rt);
}
void Change(int L,int R,int x,int l,int r,int rt){
    if(l >= L && r <= R){
        if(tree[rt].v != -1){
            if(tree[rt].v > x){
                tree[rt].add = tree[rt].v = Gcd(tree[rt].v,x);
            }
            return ;
        }
    }
    PushDown(rt);
    int m = (l+r) >> 1;
    if(L <= m) Change(L,R,x,Lson);
    if(R > m) Change(L,R,x,Rson);
    PushUp(rt);
}
void Dfs(int l,int r,int rt)
{
    if(l == r){
        printf("%d ",tree[rt].v);
        return ;
    }
    PushDown(rt);
    int m = (l + r)>>1;
    Dfs(Lson);
    Dfs(Rson);
}
int main(){
    int t;
    while(~scanf("%d",&t)){
        while(t--){
            int n,q;
            scanf("%d",&n);
            build(1,n,1);
            scanf("%d",&q);
            while(q--){
                int a,l,r,x;
                scanf("%d%d%d%d",&a,&l,&r,&x);
                if(a&1) Update(l,r,x,1,n,1);
                else Change(l,r,x,1,n,1);
            }
            Dfs(1,n,1);
            printf("\n");
        }
    }
    return 0;
}