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#include #include #include #include #include #include #include #include #include #include #include using namespace std; #define N 500005 #define ll int ll n; ll c[N], maxn; inline ll lowbit(ll x){return x&(-x);} void change(ll pos, ll val){ while(pos)c[pos]=max(c[pos],val), pos-=lowbit(pos); } ll maxx(ll pos){ ll ans = -1; while(pos<=maxn)ans = max(ans,c[pos]),pos+=lowbit(pos); return ans; } struct node{ ll b[3],num; }w[N]; bool cmp0(node x, node y){return x.b[0]y.b[1];} int main(){ ll i,j; while(cin>>n) { for(i=0;iw[j].b[2]) ans++; for(j = i; j < n && w[i].b[1] == w[j].b[1]; j++) change(w[j].num, w[j].b[2]); i = j; } cout<
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