#include <bits/stdc++.h>
#define nl "\n"
#define no "NO"
#define yes "YES"
#define fi first
#define se second
#define vec vector
#define task "main"
#define _mp make_pair
#define ii pair<int, int>
#define sz(x) (int)x.size()
#define all(x) x.begin(), x.end()
#define evoid(val) return void(std::cout << val)
#define FOR(i, a, b) for(int i = (a); i <= (b); ++i)
#define FOD(i, b, a) for(int i = (b); i >= (a); --i)
#define unq(x) sort(all(x)); x.resize(unique(all(x)) - x.begin())
using namespace std;
template<typename U, typename V> bool maxi(U &a, V b) {
if (a < b) { a = b; return 1; } return 0;
}
template<typename U, typename V> bool mini(U &a, V b) {
if (a > b) { a = b; return 1; } return 0;
}
const int N = (int)2e5 + 9;
const int mod = (int)1e9 + 7;
struct IT {
int n;
vec<long long> t;
IT () {};
IT (int _n) {
n = _n;
t.resize(4 * n + 7);
}
void upd(int id, int l, int r, int p, long long v) {
if (l == r)
return void(t[id] = v);
int m = (l + r) >> 1;
if (p <= m) upd(id << 1, l, m, p, v);
else upd(id << 1 | 1, m + 1, r, p, v);
t[id] = __gcd(t[id << 1], t[id << 1 | 1]);
}
long long get(int id, int l, int r, int u, int v) {
if (l > v or r < u) return 0;
if (l >= u and r <= v) return t[id];
int m = (l + r) >> 1;
return __gcd(get(id << 1, l, m, u, v),
get(id << 1 | 1, m + 1, r, u, v));
}
};
namespace SUB2 {
int n, m;
IT st[10];
void init(int _n, int _m) {
n = _n;
m = _m;
FOR(i, 0, n - 1)
st[i] = IT(m);
}
void upd(int x, int y, long long k) {
++y;
st[x].upd(1, 1, m, y, k);
}
long long query(int x, int y, int u, int v) {
++y, ++v;
long long ans = 0;
for(int i = x; i <= u; ++i) {
ans = __gcd(ans, st[i].get(1, 1, m, y, v));
}
return ans;
}
};
int n, m;
bool sub2 = 0;
void init(int R, int C) {
n = R, m = C;
if (n <= 10 and m <= (int)1e5) {
sub2 = 1;
SUB2::init(n, m);
}
}
void update(int P, int Q, long long K) {
if (sub2) {
SUB2::upd(P, Q, K);
return ;
}
}
long long calculate(int P, int Q, int U, int V) {
if (sub2) {
return SUB2::query(P, Q, U, V);
}
return 0;
}
Compilation message
/usr/bin/ld: /tmp/ccphmUvx.o: in function `main':
grader.c:(.text.startup+0x6b): undefined reference to `init'
/usr/bin/ld: grader.c:(.text.startup+0xd0): undefined reference to `calculate'
/usr/bin/ld: grader.c:(.text.startup+0x13e): undefined reference to `update'
collect2: error: ld returned 1 exit status
