#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ld = long double;
using db = double;
using str = string; // yay python!
using pi = pair<int,int>;
using pl = pair<ll,ll>;
using pd = pair<db,db>;
using vi = vector<int>;
using vb = vector<bool>;
using vl = vector<ll>;
using vd = vector<db>;
using vs = vector<str>;
using vpi = vector<pi>;
using vpl = vector<pl>;
using vpd = vector<pd>;
#define tcT template<class T
// ^ lol this makes everything look weird but I'll try it
tcT> using V = vector<T>;
tcT, size_t SZ> using AR = array<T,SZ>;
// pairs
#define mp make_pair
#define f first
#define s second
// vectors
#define sz(x) (int)(x).size()
#define all(x) begin(x), end(x)
#define rall(x) (x).rbegin(), (x).rend()
#define sor(x) sort(all(x))
#define rsz resize
#define ins insert
#define ft front()
#define bk back()
#define pf push_front
#define pb push_back
#define eb emplace_back
#define lb lower_bound
#define ub upper_bound
// loops
#define FOR(i,a,b) for (int i = (a); i < (b); ++i)
#define F0R(i,a) FOR(i,0,a)
#define ROF(i,a,b) for (int i = (b)-1; i >= (a); --i)
#define R0F(i,a) ROF(i,0,a)
#define trav(a,x) for (auto& a: x)
const int MOD = 1e9+7; // 998244353;
const int MX = 2e5+5;
const ll INF = 1e18; // not too close to LLONG_MAX
const ld PI = acos((ld)-1);
const int xd[4] = {1,0,-1,0}, yd[4] = {0,1,0,-1}; // for every grid problem!!
mt19937 rng((uint32_t)chrono::steady_clock::now().time_since_epoch().count());
// helper funcs
constexpr int pct(int x) { return __builtin_popcount(x); } // # of bits set
constexpr int bits(int x) { return 31-__builtin_clz(x); } // floor(log2(x))
ll cdiv(ll a, ll b) { return a/b+((a^b)>0&&a%b); } // divide a by b rounded up
ll fdiv(ll a, ll b) { return a/b-((a^b)<0&&a%b); } // divide a by b rounded down
tcT> bool ckmin(T& a, const T& b) {
return b < a ? a = b, 1 : 0; } // set a = min(a,b)
tcT> bool ckmax(T& a, const T& b) {
return a < b ? a = b, 1 : 0; }
#define tcTU tcT, class U
tcTU> T fstTrue(T lo, T hi, U f) {
hi ++; assert(lo <= hi); // assuming f is increasing
while (lo < hi) { // find first index such that f is true
T mid = lo+(hi-lo)/2;
f(mid) ? hi = mid : lo = mid+1;
}
return lo;
}
tcTU> T lstTrue(T lo, T hi, U f) {
lo --; assert(lo <= hi); // assuming f is decreasing
while (lo < hi) { // find first index such that f is true
T mid = lo+(hi-lo+1)/2;
f(mid) ? lo = mid : hi = mid-1;
}
return lo;
}
tcT> void remDup(vector<T>& v) { // sort and remove duplicates
sort(all(v)); v.erase(unique(all(v)),end(v)); }
tcTU> void erase(T& t, const U& u) { // don't erase
auto it = t.find(u); assert(it != end(t));
t.erase(u); } // element that doesn't exist from (multi)set
// INPUT
#define tcTUU tcT, class ...U
tcT> void re(complex<T>& c);
tcTU> void re(pair<T,U>& p);
tcT> void re(vector<T>& v);
tcT, size_t SZ> void re(AR<T,SZ>& a);
tcT> void re(T& x) { cin >> x; }
void re(db& d) { str t; re(t); d = stod(t); }
void re(ld& d) { str t; re(t); d = stold(t); }
tcTUU> void re(T& t, U&... u) { re(t); re(u...); }
tcT> void re(complex<T>& c) { T a,b; re(a,b); c = {a,b}; }
tcTU> void re(pair<T,U>& p) { re(p.f,p.s); }
tcT> void re(vector<T>& x) { trav(a,x) re(a); }
tcT, size_t SZ> void re(AR<T,SZ>& x) { trav(a,x) re(a); }
// TO_STRING
#define ts to_string
str ts(char c) { return str(1,c); }
str ts(const char* s) { return (str)s; }
str ts(str s) { return s; }
str ts(bool b) {
#ifdef LOCAL
return b ? "true" : "false";
#else
return ts((int)b);
#endif
}
tcT> str ts(complex<T> c) {
stringstream ss; ss << c; return ss.str(); }
str ts(vector<bool> v) {
str res = "{"; F0R(i,sz(v)) res += char('0'+v[i]);
res += "}"; return res; }
template<size_t SZ> str ts(bitset<SZ> b) {
str res = ""; F0R(i,SZ) res += char('0'+b[i]);
return res; }
tcTU> str ts(pair<T,U> p);
tcT> str ts(T v) { // containers with begin(), end()
#ifdef LOCAL
bool fst = 1; str res = "{";
for (const auto& x: v) {
if (!fst) res += ", ";
fst = 0; res += ts(x);
}
res += "}"; return res;
#else
bool fst = 1; str res = "";
for (const auto& x: v) {
if (!fst) res += " ";
fst = 0; res += ts(x);
}
return res;
#endif
}
tcTU> str ts(pair<T,U> p) {
#ifdef LOCAL
return "("+ts(p.f)+", "+ts(p.s)+")";
#else
return ts(p.f)+" "+ts(p.s);
#endif
}
// OUTPUT
tcT> void pr(T x) { cout << ts(x); }
tcTUU> void pr(const T& t, const U&... u) {
pr(t); pr(u...); }
void ps() { pr("\n"); } // print w/ spaces
tcTUU> void ps(const T& t, const U&... u) {
pr(t); if (sizeof...(u)) pr(" "); ps(u...); }
// DEBUG
void DBG() { cerr << "]" << endl; }
tcTUU> void DBG(const T& t, const U&... u) {
cerr << ts(t); if (sizeof...(u)) cerr << ", ";
DBG(u...); }
#ifdef LOCAL // compile with -DLOCAL, chk -> fake assert
#define dbg(...) cerr << "Line(" << __LINE__ << ") -> [" << #__VA_ARGS__ << "]: [", DBG(__VA_ARGS__)
#define chk(...) if (!(__VA_ARGS__)) cerr << "Line(" << __LINE__ << ") -> function(" \
<< __FUNCTION__ << ") -> CHK FAILED: (" << #__VA_ARGS__ << ")" << "\n", exit(0);
#else
#define dbg(...) 0
#define chk(...) 0
#endif
long long gcd2(long long X, long long Y) {
long long tmp;
while (X != Y && Y != 0) {
tmp = X;
X = Y;
Y = tmp % Y;
}
return X;
}
typedef struct tnode* pt;
struct tnode {
int pri, pos; pt c[2]; ll val, sum;
tnode (int _pos, ll _val) {
pos = _pos;
pri = rng(); sum = val = _val;
c[0] = c[1] = NULL;
}
};
ll getsum(pt x) { return x?x->sum:0; }
pt calc(pt x) {
pt a = x->c[0], b = x->c[1];
x->sum = gcd2(x->val,gcd2(getsum(a),getsum(b)));
return x;
}
pair<pt,pt> split(pt t, int v) { // >= v goes to the right
if (!t) return {t,t};
if (t->pos >= v) {
auto p = split(t->c[0], v); t->c[0] = p.s;
return {p.f,calc(t)};
} else {
auto p = split(t->c[1], v); t->c[1] = p.f;
return {calc(t),p.s};
}
}
pt merge(pt l, pt r) { // merge treaps, keys in left < keys in right
if (!l || !r) return l?:r;
pt t;
if (l->pri > r->pri) l->c[1] = merge(l->c[1],r), t = l;
else r->c[0] = merge(l,r->c[0]), t = r;
return calc(t);
}
pt ins(pt x, int p, ll v) { // insert v
auto a = split(x,p), b = split(a.s,p+1);
return merge(a.f,merge(new tnode(p, v),b.s)); }
ll ql(pt x, int L){
if(!x) return 0;
if(x->pos < L)
return ql(x->c[1], L);
else
return gcd2(x->val, gcd2(getsum(x->c[1]), ql(x->c[0], L)));
}
ll qr(pt x, int R){
if(!x) return 0;
if(x->pos > R)
return ql(x->c[0], R);
else
return gcd2(x->val, gcd2(getsum(x->c[0]), qr(x->c[1], R)));
}
ll qu(pt x, int L, int R){
if(!x) return 0;
if(x->pos < L)
return qu(x->c[1], L, R);
if(x->pos > R)
return qu(x->c[0], L, R);
return gcd2(x->val, gcd2(ql(x->c[0], L), qr(x->c[1], R)));
}
const int SZ = 1e9+10;
template<class T> struct Node {
pt treap;
Node* c[2];
Node() { c[0] = c[1] = NULL; treap = NULL; }
void upd(int x, int y, T v, int L = 0, int R = SZ-1) { // add v
if (L == x && R == x) { treap = ins(treap,y,v); return; }
int M = (L+R)/2;
if (x <= M) {
if (!c[0]) c[0] = new Node();
c[0]->upd(x,y,v,L,M);
} else {
if (!c[1]) c[1] = new Node();
c[1]->upd(x,y,v,M+1,R);
}
ll nxt = 0;
if(c[0])
nxt = gcd2(nxt, qu(c[0]->treap, y, y));
if(c[1])
nxt = gcd2(nxt, qu(c[1]->treap, y, y));
treap = ins(treap, y, nxt);
}
T query(int x1, int x2, int y1, int y2, int L = 0, int R = SZ-1) { // query sum of rectangle
if (x1 <= L && R <= x2) return qu(treap,y1,y2);
if (x2 < L || R < x1) return 0;
int M = (L+R)/2; T res = 0;
if (c[0]) res = gcd2(res, c[0]->query(x1,x2,y1,y2,L,M));
if (c[1]) res = gcd2(res, c[1]->query(x1,x2,y1,y2,M+1,R));
return res;
}
};
Node<ll>* tr = new Node<ll>();
void init(int R, int C) {
/* ... */
}
void update(int P, int Q, long long K) {
/* ... */
tr->upd(P, Q, K);
}
long long calculate(int P, int Q, int U, int V) {
/* ... */
return tr->query(P, U, Q, V);
}
Compilation message
/tmp/ccqLgj8E.o: In function `main':
grader.c:(.text.startup+0x7d): undefined reference to `init'
grader.c:(.text.startup+0xd8): undefined reference to `calculate'
grader.c:(.text.startup+0x142): undefined reference to `update'
collect2: error: ld returned 1 exit status
