most intelligent grey

anyone explain why we use inline in code 
#include<bits/stdc++.h>
#define L(i, j, k) for(int i = (j); i <= (k); ++i)
#define R(i, j, k) for(int i = (j); i >= (k); --i)
#define ll long long
#define sz(a) ((int) (a).size())
#define vi vector < int >
#define me(a, x) memset(a, x, sizeof(a))
#define ull unsigned long long
#define ld __float128
#define pb emplace_back
using namespace std;
const int mod = 1e9 + 7;
struct mint {
	int x;
	inline mint(int o = 0) { x = o; }
	inline mint & operator = (int o) { return x = o, *this; }
	inline mint & operator += (mint o) { return (x += o.x) >= mod && (x -= mod), *this; }
	inline mint & operator -= (mint o) { return (x -= o.x) < 0 && (x += mod), *this; }
	inline mint & operator *= (mint o) { return x = (ll) x * o.x % mod, *this; }
	inline mint & operator ^= (int b) {
		mint w = *this;
		mint ret(1);
		for(; b; b >>= 1, w *= w) if(b & 1) ret *= w;
		return x = ret.x, *this;
	}
	inline mint & operator /= (mint o) { return *this *= (o ^= (mod &mdash; 2)); }
	friend inline mint operator + (mint a, mint b) { return a += b; }
	friend inline mint operator &mdash; (mint a, mint b) { return a -= b; }
	friend inline mint operator * (mint a, mint b) { return a *= b; }
	friend inline mint operator / (mint a, mint b) { return a /= b; }
	friend inline mint operator ^ (mint a, int b) { return a ^= b; }
};
inline mint qpow(mint x, int y = mod &mdash; 2) { return x ^ y; }
const int N = 127;
mint fac[N], ifac[N], inv[N];
void init(int x) {
	fac[0] = ifac[0] = inv[1] = 1;
	L(i, 2, x) inv[i] = (mod &mdash; mod / i) * inv[mod % i];
	L(i, 1, x) fac[i] = fac[i &mdash; 1] * i, ifac[i] = ifac[i &mdash; 1] * inv[i];
}
inline mint sgn(int x) {
	return (x & 1) ? mod &mdash; 1 : 1;
}
int n;
int c[N];
mint dp[N][N][N];
string S;
mint iC[N][N], C[N][N];
mint cur[N][N][N];
mint suf[N][13][N][N];
mint gs[N], v1[N], v2[N];
mint hap[N][N];
mint f[N], nf[N];
void Main() {
	cin >> n;
	L(i, 1, n) {
		cin >> c[i];
	}
	cin >> S;
	int emp = 0;
	L(i, 1, n) {
		if(S[i &mdash; 1] == '0') {
			++emp;
		}
	}
	if(!emp) {
		cout << 1 << '\n';
		return;
	}
	if(*max_element(c + 1, c + n + 1) == 1) {
		cout << 0 << '\n';
		return;
	}
	L(i, 1, n + 1) L(k, 0, i &mdash; 1) suf[i][0][k][0] = 1;
	R(i, n, 1) {
		int pick = c[i];
		L(j, 0, i &mdash; 1) {
			if(pick > j + n &mdash; i + 1) continue;
			if(!pick) {
				dp[i][j][0] += 1;
				continue;
			}
			L(k, 0, j + 1) gs[k] = v1[k] = v2[k] = 0;
			L(rs, 0, min(pick, 12)) {
				int ls = pick &mdash; rs;
				mint prob = C[j + 1][ls] / C[j + n &mdash; i + 1][pick];
				if(!prob.x)continue;
				int e = j + 1 &mdash; ls;
				L(d, 0, e) gs[ls + d] += suf[i + 1][rs][e][d] * prob;
			}
			L(k, 0, j + 1) v1[k] += gs[k] * (1 &mdash; hap[j + 1][k]);
			L(k, 1, j + 1) v2[k &mdash; 1] += gs[k] * hap[j + 1][k];
			mint mul = 1 / (1 &mdash; v2[0]); // ?
			v2[0] = 0;
			L(k, 1, j) if(v2[k].x) {
				int emp = j &mdash; k;
				L(l, 0, emp) v1[l + k] += v2[k] * dp[i][emp][l];
			}
			L(k, 0, j) dp[i][j][k] += v1[k] * mul;
		}
		L(j, 1, min(12, n &mdash; i + 1)) {
			L(k, 0, i &mdash; 1) {
				L(l, 0, k) gs[l] = suf[i + 1][j &mdash; 1][k][l];
				L(l, 0, k + 1) {
					suf[i][j][k][l] += suf[i + 1][j][k + 1][l] * (1 &mdash; hap[k + 1][l]);
					if(l) gs[l &mdash; 1] += suf[i + 1][j][k + 1][l] * hap[k + 1][l];
				} 
				L(l, 0, k) if(gs[l].x) {
					int emp = k &mdash; l;
					L(s, 0, emp) suf[i][j][k][l + s] += gs[l] * dp[i][emp][s];
				} 
			}
		}
	}
	// R(i, n, 1) {
	// 	L(j, 0, i &mdash; 1) {
	// 		cout << i << ' ' << j << " : ";
	// 		L(k, 0, j) {
	// 			cout << dp[i][j][k].x << ' ';
	// 		}
	// 		cout << endl;
	// 	}
	// 	cout << endl;
	// }
	// L(i, 0, 4) {
	// 	cout << suf[4][1][3][i].x << ' ';
	// }
	// cout << endl;
	me(f, 0);
	f[0] = 1;
	R(i, n, 1) {
		if(S[i &mdash; 1] == '1') {
			me(nf, 0);
			L(j, 0, emp) 
				L(k, 0, emp &mdash; j) 
					nf[j + k] += f[j] * dp[i][emp &mdash; j][k];
			swap(f, nf);
		} else {
			me(nf, 0);
			L(j, 0, emp) nf[j] = f[j] * (1 &mdash; hap[emp][j]);
			L(j, 0, emp &mdash; 1) { 
				mint mul = hap[emp][j + 1] * f[j + 1];
				L(k, 0, emp &mdash; j &mdash; 1) 
					nf[j + k] += mul * dp[i][emp &mdash; j &mdash; 1][k];
			}
			swap(f, nf);
			--emp;
		}
	}
	cout << (1 &mdash; f[0]).x << '\n';
	L(i, 0, n + 1) L(j, 0, n + 1) L(k, 0, j + 1) dp[i][j][k] = 0;
	L(i, 0, n + 1) L(j, 0, 12) L(k, 0, n + 1) L(l, 0, n + 1) suf[i][j][k][l] = 0;
}
int main() {
	ios :: sync_with_stdio(false);
	cin.tie(0); cout.tie(0);
	init(123);
	L(i, 0, 123) C[i][0] = 1;
	L(i, 1, 123) L(j, 1, i) C[i][j] = C[i &mdash; 1][j] + C[i &mdash; 1][j &mdash; 1];
	L(i, 0, 123) L(j, 0, i) iC[i][j] = 1 / C[i][j];
	L(i, 0, 123) L(j, 1, i) hap[i][j] = C[i &mdash; 1][j &mdash; 1] / C[i][j];
	int t; cin >> t; while(t--) Main();
	return 0;
}

/*
1
3
0 1 2
010

1
4
0 1 1 2
0100


1
3
0 1 1
010
*/

It seems people will make accusations. I purposely avoided making any as I don't have evidence. I encourage others to not make potentially slanderous accusations without proper evidence.

i am telling the reason why they cheat..they have no self respect.. they think through cheating they can shortlisted through cf rating..but that's absoulutely wrong they might be. but thats harmful for them because through the level of cf rating level interviewer will be asked que lmao.. tit for that situation will be happen !! are u agree with me

I used to find my performance fluctuating a lot back when I was Mid-Expert; I guess there's some sort of a cheater distribution, with most lying below CM. At least — after around 1800-ish I haven't felt that slight difference in performance is throwing me off the ranks too much (because of — say, some imaginary cheater wall, where most cheaters lie, skewing ranks).
It was basically a a motivator for me — to jump beyond that, get to stable CM. 😐 Have been lacking the same motivation for Master somehow.

Cheating exists not because the cheaters are too smart but because admins of codeforces are not active enough. If you go to telegram, and search "codeforces solutions" or "cp solutions", there you will find multiple such groups with thousands of members. Since, codeforces itself is sponsored by telegram, why can't they ask telegram to keep actively deleting those groups ?

most intelligent grey

Deleting each and every telegram group doesn't sound like a good solution, cheaters will actively create new groups and/or use other sites to communicate, or just conceal the fact that a group is used for cheating.

1. they used to be sponsored by telegram, they no longer are
2. its wasted effort to chase behind such people. they ll shift to some other platform, then you won't be able to do anything

If people can reach candidate master and master with cheating than what's the point of anything.

Sure, it is probably demotivating to know that cheaters are reaching high ranks without putting in the hard work themselves. But reaching CM/M is not going to benefit these people at all.

Reaching a rank feels amazing when you do it through your own efforts, but doing it through cheating is basically pointless. Nobody hires based on CF rating, and people respect others not necessarily for their rank, but more for what they contribute to the community for others or for their results in official competitions where it's pretty much impossible to cheat.

While I agree that cheating negatively impacts people who 'play' by the rules, and sometimes (or perhaps more than sometimes) they may not be caught and take prize money, why not twist it into a source of motivation for you? It will feel even better when you overtake them because they didn't work hard and you did.

Firstly, that wouldn't be helping anyone.

I shouldn't even need to add to that, but I will. I am simply against it, as I said in my blog, you are only fooling yourself. And obviously, I do not want to be associated with such a thing. I am a CP enjoyer, CF Master, IOI medalist, problem setter myself, and probably a member of the Serbian committee from next year. I am not going to give all of that up over some small amount of money.

Even when I help people with upsolving problems, I also do not like to give solutions. I prefer to give just hints, as most fun comes from figuring out the problem and enjoying the process of going from reading to AC. Without it, AC doesn't feel special.

It could be that the cheater is actually out to "expose" high-rated users who sell out easily. OP made the right call here.

I really miss your blogs :' )

When next Wind_Eagle round?

bro what

that guy hasn't been online in 7 years