Submission #20003321

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Source Code Expand

#include<bits/stdc++.h>
#include<atcoder/all>
using namespace std;
using ll = long long;
using Graph = vector<vector<int>>;
#define ALL(x) (x).begin(), (x).end()
#define REP(i ,n) for(int i = 0; i < (int)(n); i++)
#define pb push_back
#define mp make_pair
typedef vector<int>vint;
typedef vector<ll>vll;
template<typename T> istream &operator>>(istream &is, vector<T> &vec){ for (auto &v : vec) is >> v; return is; }
template<typename A,typename B>inline bool chmin(A &a,const B &b){if(a>b){a=b;return true;}else{return false;}}
template<typename A,typename B>inline bool chmax(A &a,const B &b){if(a<b){a=b;return true;}else{return false;}}

int di[] = {-1, 0, 0, 1};
int dj[] = { 0,-1, 1, 0};

int din[] = {-1, 1, -1, 1};
int djn[] = {-1,-1, 1, 1};

int main(){
    int H,W;
    cin >> H >> W;
    char M[H][W];
    REP(i,H)REP(j,W)cin >> M[i][j];
    int ans = 0;
    REP(i,H){
        REP(j,W){
            if(M[i][j] == '.')continue;
            ans += 4;
            bool flag = true;
            REP(k,4){
                int ni = i + di[k];
                int nj = j + dj[k];
                if(M[ni][nj] == '#')ans-=2;
            }
            REP(k,4){
                int ni = i + din[k];
                int nj = j + djn[k];
                if(M[ni][nj] == '#')ans++;
            }
        }
    }
    cout << ans << endl;

}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:32:18: warning: unused variable ‘flag’ [-Wunused-variable]
   32 |             bool flag = true;
      |                  ^~~~

Judge Result