提出 #58668294

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ソースコード 拡げる

#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
#define all(vec) vec.begin(), vec.end()
#define repr(i,from,to) for (ll i=from; i<to; ++i)
#define rep(i,N) repr(i,0,N)
#define per(i,N) for(ll i=N-1; i>=0; --i)
template<class T>
void debug(T itr1, T itr2) { auto now = itr1; while(now<itr2) { cout << *now << " "; now++; } cout << endl; }

const ll INF = (1ll<<61)-1;
ll gcd(ll a, ll b) { if (a<b) swap(a,b); return b==0 ? a : gcd(b, a%b); }

// --------------------------------------------
// mod
// --------------------------------------------
const ll MOD = 998244353;
ll inv(ll a, ll m=MOD) { ll b = m, x = 1, y = 0; while (b!=0) { int d = a/b; a -= b*d; swap(a,b); x -= y*d; swap(x,y); } return (x+m)%m; }
ll mpow(ll n, ll p, ll m=MOD) { ll result = 1; for (ll i=1; i<=p; i=i<<1) { if (p&i) result = result*n%m; n = n*n%m; } return result; }
ll madd(ll x, ll y, ll m=MOD) { return (x+y)%m; }
ll msub(ll x, ll y, ll m=MOD) { return (x-y+m)%m; }
ll mmul(ll x, ll y, ll m=MOD) { return x*y%m; }
ll mdiv(ll x, ll y, ll m=MOD) { return mmul(x, inv(y)); }

vector<ll> fac;
void c_fac(int x=pow(10,6)+10) { fac.resize(x,true); rep(i,x) fac[i] = i ? (fac[i-1]*i)%MOD : 1; }
ll nck(ll n, ll k) { return mdiv(fac[n], mmul(fac[k],fac[n-k])); }


int main() {
  ll N; cin >> N;
  string S; cin >> S;

  ll result = 0;
  rep(i,N-2) {
    result += S[i] == '#' && S[i+1] == '.' && S[i+2] == '#';
  }
  cout << result << endl;
  return 0;
}

提出情報

コンパイルエラー

Main.cpp: In function ‘ll mdiv(ll, ll, ll)’:
Main.cpp:24:24: warning: unused parameter ‘m’ [-Wunused-parameter]
   24 | ll mdiv(ll x, ll y, ll m=MOD) { return mmul(x, inv(y)); }
      |                     ~~~^~~~~

ジャッジ結果