#include using namespace std; typedef signed long long ll; #undef _P #define _P(...) (void)printf(__VA_ARGS__) #define FOR(x,to) for(x=0;x<(to);x++) #define FORR(x,arr) for(auto& x:arr) #define ITR(x,c) for(__typeof(c.begin()) x=c.begin();x!=c.end();x++) #define ALL(a) (a.begin()),(a.end()) #define ZERO(a) memset(a,0,sizeof(a)) #define MINUS(a) memset(a,0xff,sizeof(a)) //------------------------------------------------------- template class SegTree_1 { public: vector> val,sum; static V const def=0; V comp(V l,V r){ return max(l,r);}; SegTree_1(){val.resize(NV*2);sum.resize(NV*2);}; V getval(int x,int y,int v,int l=0,int r=NV,int k=1) { // x<=i=1;i--) { val[i].clear(); int a=0,b=0; int x=i*2,y=i*2+1; while(a st; int N,Q; void solve() { int i,j,k,l,r,x,y; string s; cin>>N>>Q; FOR(i,N) { cin>>x; st.set(i+1,x); } st.build(); FOR(i,Q) { int L,R,X; cin>>j>>L>>R>>X; cout<