https://codeforces.com/contest/483/problem/D
题解
https://blog.csdn.net/qq_31759205/article/details/52454005
代码
1 #define bug(x) cout<<#x<<" is "<<x<<endl; 2 #define IO std::ios::sync_with_stdio(0); 3 #include <bits/stdc++.h> 4 #define iter ::iterator 5 using namespace std; 6 typedef long long ll; 7 typedef pair<ll,ll>P; 8 typedef pair<P,P>P1; 9 #define mk make_pair 10 #define pb push_back 11 #define se second 12 #define fi first 13 #define rs o<<1|1 14 #define ls o<<1 15 const int N=1e5+5; 16 ll mod=1e9+7; 17 int n,m; 18 struct node{ 19 int x,y,z; 20 }a[N]; 21 int sumv[N*4],addv[N*4]; 22 void push(int o){ 23 sumv[o]=sumv[ls]&sumv[rs]; 24 } 25 void down(int o){ 26 if(addv[o]){ 27 sumv[ls]|=addv[o]; 28 sumv[rs]|=addv[o]; 29 addv[ls]|=addv[o]; 30 addv[rs]|=addv[o]; 31 addv[o]=0; 32 } 33 } 34 void up(int o,int l,int r,int ql,int qr,int v){ 35 if(l>=ql&&r<=qr){ 36 sumv[o]|=v; 37 addv[o]|=v; 38 return; 39 } 40 int m=(l+r)/2; 41 down(o); 42 if(ql<=m)up(ls,l,m,ql,qr,v); 43 if(qr>m)up(rs,m+1,r,ql,qr,v); 44 push(o); 45 } 46 int qu(int o,int l,int r,int ql,int qr){ 47 if(l>=ql&&r<=qr){ 48 return sumv[o]; 49 } 50 int m=(l+r)/2; 51 int res=(1<<30)-1; 52 down(o); 53 if(ql<=m)res=res&qu(ls,l,m,ql,qr); 54 if(qr>m)res=res&qu(rs,m+1,r,ql,qr); 55 push(o); 56 return res; 57 } 58 void work(int o,int l,int r){ 59 if(l==r){ 60 if(l!=n)cout<<sumv[o]<<" "; 61 else cout<<sumv[o]<<endl; 62 return; 63 } 64 int m=(l+r)/2; 65 down(o); 66 work(ls,l,m); 67 work(rs,m+1,r); 68 } 69 int main(){ 70 IO; 71 cin>>n>>m; 72 for(int i=1;i<=m;i++){ 73 cin>>a[i].x>>a[i].y>>a[i].z; 74 up(1,1,n,a[i].x,a[i].y,a[i].z); 75 } 76 int flag=0; 77 for(int i=1;i<=m;i++){ 78 int res=qu(1,1,n,a[i].x,a[i].y); 79 if(res!=a[i].z){ 80 flag=1; 81 break; 82 } 83 } 84 if(!flag){ 85 cout<<"YES"<<endl; 86 work(1,1,n); 87 } 88 else cout<<"NO"<<endl; 89 }