Submission #1518168

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Source Code Expand

#include<bits/stdc++.h>

using namespace std;

typedef unsigned long long ll;


ll mo=1000000007;
ll combi(ll N_, ll C_) {
	const int NUM_=400001;
	static ll fact[NUM_+1],factr[NUM_+1],inv[NUM_+1];
	if (fact[0]==0) {
		inv[1]=fact[0]=factr[0]=1;
		for (int i=2;i<=NUM_;++i) inv[i] = inv[mo % i] * (mo - mo / i) % mo;
		for (int i=1;i<=NUM_;++i) fact[i]=fact[i-1]*i%mo, factr[i]=factr[i-1]*inv[i]%mo;
	}
	if(C_<0 || C_>N_) return 0;
	return factr[C_]*fact[N_]%mo*factr[N_-C_]%mo;
}

int N;
int A[101010];
int num[101010];
vector<int> V;
void solve() {
	int i,j,k,l,r,x,y; string s;
	
	cin>>N;
	FOR(i,N+1) {
		cin>>A[i];
		num[A[i]]++;
	}
	FOR(i,N+1) if(num[A[i]]==2) V.push_back(i);
	int a=V[0];
	int b=V[1]-V[0]-1;
	int c=N-V[1];
	for(i=1;i<=N+1;i++) {
		if(i==1) {
			cout<<N<<endl;
			continue;
		}
		ll ret=0;
		// D=0
		ret += combi(N-1,i);
		// D=1
		ret += combi(a+c,i-1);
		ret += (combi(a+c+b,i-1)-combi(a+c,i-1))*2;
		
		// D=2
		ret += combi(N-1,i-2);
		
		cout<<(ret%mo+mo)%mo<<endl;
		
	}
	
	
}

Submission Info

Compile Error

./Main.cpp: In function ‘void solve()’:
./Main.cpp:30:11: error: ‘FOR’ was not declared in this scope
  FOR(i,N+1) {
           ^