코드: #include #include #define fastio() ios::sync_with_stdio(0),cin.tie(nullptr),cout.tie(nullptr); using namespace std; typedef long long ll; ll n, m, k, from; ll arr[10000000]; void update(ll location, ll v) { ll idx = location + from - 1; arr[idx] = v; for (ll i = idx / 2; i >= 1; i /= 2) { arr[i] = arr[i * 2] + arr[i * 2 + 1]; } } ll sum(ll l, ll r, ll idx = 1, ll L = 1, ll R = from) { if (l ..
