#include // #include using namespace std; // using namespace atcoder; using lint = long long; using graph = vector>; #define endl '\n' lint const mod = 1e9+7; //long const mod = 998244353; struct UnionFind { vector par; UnionFind(int n) : par(n, -1) { } void init(int n) { par.assign(n, -1); } int find(int x) { if (par[x] < 0) return x; else return par[x] = find(par[x]); } bool same(int x, int y) { return find(x) == find(y); } bool unite(int x, int y) { x = find(x); y = find(y); if (x == y) return false; if (par[x] > par[y]) swap(x, y); // merge technique par[x] += par[y]; par[y] = x; return true; } int size(int x) { return -par[find(x)]; } }; int main(){ lint n,a,b; cin >> n >> a >> b; vectorx(n); for(int i=0;i> x[i]; graph g(n); vectortmp(n+1); UnionFind unif(n); for(int i=0;i 0 && tmp[i-1] > 0){ unif.unite(i,i-1); } } for(int i=0;i