#include using namespace std; #define NDEBUG #include typedef long long ll; typedef unsigned long long ull; typedef pair ii; typedef pair llll; typedef pair dd; typedef vector vi; typedef vector> vvi; typedef vector vii; typedef vector> vvii; typedef vector vll; typedef vector> vvll; typedef vector vb; typedef vector vs; typedef vector vd; #define pb push_back #define eb emplace_back #define rep(var,n) for(int var=0;var<(n);++var) #define rep1(var,n) for(int var=1;var<=(n);++var) #define repC2(vari,varj,n) for(int vari=0;vari<(n)-1;++vari)for(int varj=vari+1;varj<(n);++varj) #define repC3(vari,varj,vark,n) for(int vari=0;vari<(n)-2;++vari)for(int varj=vari+1;varj<(n)-1;++varj)for(int vark=varj+1;vark<(n);++vark) #define ALL(c) (c).begin(),(c).end() #define RALL(c) (c).rbegin(),(c).rend() #define whole(f, x, ...) \ ([&](decltype((x)) whole) { \ return (f)(begin(whole), end(whole), ##__VA_ARGS__); \ })(x) #define tr(i,c) for(auto i=(c).begin(); i!=(c).end(); ++i) #define found(s,e) ((s).find(e)!=(s).end()) #define mset(arr,val) memset(arr,val,sizeof(arr)) #define mid(x,y) ((x)+((y)-(x))/2) #define IN(x,a,b) ((a)<=(x)&&(x)<=(b)) #define IN_(x,a,b) ((a)<=(x)&&(x)<(b)) #define tors(a) sort(ALL(a), greater()) #define nC2(n) ((ll)(n)*((n)-1)/2) #define clamp(v,lo,hi) min(max(v,lo),hi) #define ABS(x) max((x),-(x)) #define PQ(T) priority_queue,greater> #define CLEAR(a) remove_reference_t().swap(a) template vector vec(size_t len, T elem) { return vector(len, elem); } template inline void amin(T1 & a, T2 const & b) { if (a>b) a=b; } template inline void amax(T1 & a, T2 const & b) { if (a void erase_one(multiset& ms, T val) { auto iter = ms.find(val); if (iter != ms.end()) ms.erase(iter); } inline ll square(ll x) { return x * x; } inline ll gcd(ll a, ll b) { while(a) swap(a, b%=a); return b; } inline ll lcm(ll a, ll b) { return a/gcd(a,b)*b; } template inline T mod(T a, T b) { return ((a % b) + b) % b; } #define is_digit(c) ('0'<=(c)&&(c)<='9') #define is_whitespace(c) ((c)==' '||(c)=='\n'||(c)=='\r'||(c)=='\t'||(c)==EOF) void reader(int& x){ x=0; bool neg=false; for(;;){ int k=getchar(); if(k=='-'){ neg=true; break; } if (is_digit(k)){ x=k-'0'; break;} } for(;;){ int k=getchar(); if (!is_digit(k)) break; x=x*10+k-'0'; } if(neg) x=-x; } void reader(long long& x){ x=0; bool neg=false; for(;;){ int k=getchar(); if(k=='-'){ neg=true; break; } if (is_digit(k)){ x=k-'0'; break; } } for(;;){ int k=getchar(); if (!is_digit(k)) break; x=x*10+k-'0'; } if(neg) x=-x; } void reader(unsigned long long& x){ x=0; for(;;){ int k=getchar(); if (is_digit(k)){ x=(unsigned long long)(k-'0'); break; } } for(;;){ int k=getchar(); if (!is_digit(k)) break; x=x*10+k-'0'; } } int reader(char s[]){ int c,i=0; for(;;){ c=getchar(); if (!is_whitespace(c)) break; } s[i++]=c; for(;;){ c=getchar(); if (is_whitespace(c)) break; s[i++]=c; } s[i]='\0'; return i; } int reader(string& s){ int c; for(;;){ c=getchar(); if (!is_whitespace(c)) break; } s.push_back(c); for(;;){ c=getchar(); if (is_whitespace(c)) break; s.push_back(c); } return s.size(); } void reader(char& c){ for(;;){ c=getchar(); if (!is_whitespace(c)) break; } } void writer(int x, char c=0){ int s=0; bool neg=false; char f[10]; if(x<0) neg=true,x=-x; if(x==0) f[s++]='0'; else while(x) f[s++]='0'+x%10,x/=10; if(neg) putchar('-'); while(s--) putchar(f[s]); if(c) putchar(c); } void writer(long long x, char c=0){ int s=0; bool neg=false; char f[20]; if(x<0) neg=true,x=-x; if(x==0) f[s++]='0'; else while(x) f[s++]='0'+x%10,x/=10; if(neg) putchar('-'); while(s--) putchar(f[s]); if(c) putchar(c); } void writer(unsigned long long x, char c=0){ int s=0; char f[20]; if(x==0) f[s++]='0'; else while(x) f[s++]='0'+x%10,x/=10; while(s--) putchar(f[s]); if(c) putchar(c); } void writer(const string& x, char c=0){ for(int i=0;i void reader(T& x, S& y){ reader(x); reader(y); } template void reader(T& x, S& y, U& z){ reader(x); reader(y); reader(z); } template void reader(T& x, S& y, U& z, V& w){ reader(x); reader(y); reader(z); reader(w); } template vector readerArray(int n){ vector ret(n); for(int i=0;i vector> readerMatrix(int n,int m=0){ if (m==0) m = n; vector> ret(n); for(int i=0;i(m); return ret; } template void writerLn(T x){ writer(x,'\n'); } template void writerLn(T x, S y){ writer(x,' '); writer(y,'\n'); } template void writerLn(T x, S y, U z){ writer(x,' '); writer(y,' '); writer(z,'\n'); } template void writerLn(T x, S y, U z, V v){ writer(x,' '); writer(y,' '); writer(z,' '); writer(v,'\n'); } template void writerArrayLn(T x[], int n){ if(n==0){ putchar('\n'); return; } for(int i=0;i void writerArrayLn(vector& x){ writerArrayLn(x.data(),(int)x.size()); } template void writerArrayLnV(T x[], int n){ for(int i=0;i void writerArrayLnV(vector& x){ for(T xi: x) writerLn(xi); } template void writerMatrix(vector>& x){ int n = x.size(); if (n == 0) return; int m = x[0].size(); for (int i=0; i& a,vector& b,bool decrement=true){ a.resize(M); b.resize(M); for(int i=0;i void readerEdges(size_t M,vector& a,vector& b,vector& c,bool decrement=true){ a.resize(M); b.resize(M); c.resize(M); for(int i=0;i void readerEdges(size_t M,vector& a,vector& b,vector& c,vector& d,bool decrement=true){ a.resize(M); b.resize(M); c.resize(M); d.resize(M); for(int i=0;i> make_nxt(int N, int M, vector& a, vector& b){ vector> nxt(N); for(int i=0;i vector>> make_nxt(int N, int M, vector& a, vector& b, vector& c){ vector>> nxt(N); for(int i=0;i struct SparseSegmentTree { int depth, N; static const T ident = numeric_limits::min(); static inline T merge(T a, T b) { return max(a, b); } struct node { int depth; T val; node *left, *right; node(int depth) : depth(depth), val(ident), left(nullptr), right(nullptr) {} ~node() { if (left) delete(left); if (right) delete(right); } void dump() { if (left) left->dump(); if (right) right->dump(); } T update(int ix, T newval) { if (depth == 0) { assert(ix == 0); return this->val = newval; } else { T leftval = ident, rightval = ident; int mask = 1 << (depth - 1); if (ix & mask) { if (!right) right = new node(depth - 1); rightval = right->update(ix & ~mask, newval); leftval = left ? left->val : ident; } else { if (!left) left = new node(depth - 1); leftval = left->update(ix & ~mask, newval); rightval = right ? right->val : ident; } return this->val = merge(leftval, rightval); } } T get(int ix) { if (depth == 0) { return this->val; } else { int mask = 1 << (depth - 1); if (ix & mask) { return right ? right->get(ix & ~mask) : ident; } else { return left ? left->get(ix & ~mask) : ident; } } } T query(int a, int b, int l, int r) { if (r <= a || b <= l) return ident; if (a <= l && r <= b) { return val; } else { T leftval = left ? left->query(a, b, l, (l + r) / 2) : ident; T rightval = right ? right->query(a, b, (l + r) / 2, r) : ident; return merge(leftval, rightval); } } } *root; SparseSegmentTree() : depth(0), N(0) {} SparseSegmentTree(int size) { init(size); } void init(int size) { if (size) { N = 1; depth = 0; while (N < size) { ++depth; N *= 2; } } else { N = 0; depth = 0; } this->root = new node(depth); } void dump() { root->dump(); } void update(int ix, T val) { root->update(ix, val); } T query(int lo, int hi) { return root->query(lo, hi, 0, N); } }; template void sort_uniq_max(vector>& ar) { if (ar.empty()) return; sort(ALL(ar)); int L = ar.size(), i = 0; for (int j=1; j struct SparseSegmentTree2D { int xsize, ysize, H, W; vector*> segs; static const T ident = numeric_limits::min(); static inline T merge(T a, T b) { return max(a, b); } SparseSegmentTree2D(int xsize, int ysize) : xsize(xsize), ysize(ysize) { W = 1; while (W < xsize) W *= 2; segs.assign(2 * W - 1, nullptr); } ~SparseSegmentTree2D() { rep(i, 2*W-1) { if (segs[i]) delete(segs[i]); } } void update(int x, int y, T newval){ int k = x + (W-1); while (k >= 0) { if (!segs[k]) segs[k] = new SparseSegmentTree(ysize); segs[k]->update(y, newval); if (k == 0) break; k = (k - 1)/2; } } T query(int xlo, int xhi, int ylo, int yhi, int k, int l, int r){ if (r <= xlo || xhi <= l) return ident; if (xlo <= l && r <= xhi) { return segs[k] ? segs[k]->query(ylo, yhi) : ident; } else { return merge( query(xlo,xhi, ylo,yhi, 2*k+1, l, (l+r)/2), query(xlo,xhi, ylo,yhi, 2*k+2, (l+r)/2, r) ); } } T query(int xlo, int xhi, int ylo, int yhi){ return query(xlo, xhi, ylo, yhi, 0, 0, W); } }; inline ll calc_area(vi& triangle) { ll x1 = triangle[2] - triangle[0]; ll y1 = triangle[3] - triangle[1]; ll x2 = triangle[4] - triangle[0]; ll y2 = triangle[5] - triangle[1]; return ABS(x1 * y2 - x2 * y1); } void solve(int N, int Q, vvi& triangles, vvi& queries) { set xs; set ys; vll area(N, 0); using P = tuple; queue

triangles_in_queries; rep(i, N) { for (int j = 0; j < 6; j += 2) { xs.insert(triangles[i][j]); } area[i] = calc_area(triangles[i]); ys.insert(area[i]); } rep(i, Q) { int L = queries[i].size(); if (L == 6) { int xmin = INT_MAX, xmax = INT_MIN; for (int j = 0; j < 6; j += 2) { int x = queries[i][j]; xs.insert(x); amin(xmin, x); amax(xmax, x); } ll q_area = calc_area(queries[i]); triangles_in_queries.emplace(xmin, xmax, q_area); ys.insert(q_area); CLEAR(queries[i]); } else { xs.insert(queries[i][0]); xs.insert(queries[i][1]); } } xs.insert(INT_MIN); xs.insert(INT_MAX); ys.insert(LLONG_MIN); ys.insert(LLONG_MAX); map zx; int zxid = 0; for (int x : xs) zx[x] = zxid++; CLEAR(xs); map zy; int zyid = 0; vll zyR; zyR.reserve(ys.size()); for (ll y : ys) { zy[y] = zyid++; zyR.pb(y); } CLEAR(ys); SparseSegmentTree2D seg(zxid, zxid); rep(i, N) { int xmin = INT_MAX, xmax = INT_MIN; for (int j = 0; j < 6; j += 2) { int x = zx[triangles[i][j]]; amin(xmin, x); amax(xmax, x); } seg.update(xmin, xmax, zy[area[i]]); } CLEAR(triangles); CLEAR(area); rep(i, Q) { int L = queries[i].size(); int xmin = INT_MAX, xmax = INT_MIN; if (L == 0) { auto [xmin, xmax, q_area] = triangles_in_queries.front(); triangles_in_queries.pop(); seg.update(zx[xmin], zx[xmax], zy[q_area]); } else { int l = zx[queries[i][0]], r = zx[queries[i][1]]; int res = seg.query(l, r, l, r+1); ll resR = (res >= 0) ? zyR[res] : LLONG_MIN; if (resR < 0) resR = -1; printf("%lld\n", resR); } } } int main() { int N, Q; reader(N, Q); vvi triangles(N, vi(6)); rep(i, N) { triangles[i] = readerArray(6); } vvi queries(Q); rep(i, Q) { int op; reader(op); if (op == 1) { queries[i] = readerArray(6); } else { queries[i] = readerArray(2); } } solve(N, Q, triangles, queries); return 0; }