Function update

Dynamic Programming/Increasing Subsequence II.cpp:12–15

struct Operation { int x, idx; } ops[maxN];

void update(int idx, ll val){
    for(int i = idx; i < maxN; i += -i&i)
        ds[i] = (ds[i] + val) % MOD;
}

ll query(int idx){
    ll sum = 0;