Submission #1037194

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Source Code Expand

#include <algorithm>
#include <cassert>
#include <cfloat>
#include <climits>
#include <cmath>
#include <cstdio>
#include <cstdlib>
#include <deque>
#include <iomanip>
#include <iostream>
#include <limits>
#include <map>
#include <queue>
#include <set>
#include <sstream>
#include <stack>
#include <string>
#include <tuple>
#include <vector>

#define FOR(i,k,n) for (int (i)=(k); (i)<(n); ++(i))
#define rep(i,n) FOR(i,0,n)
#define pb push_back
#define eb emplace_back
#define mp make_pair
#define fst first
#define snd second
#define all(v) begin(v), end(v)
#define debug(x) cerr<< #x <<": "<<x<<endl
#define debug2(x,y) cerr<< #x <<": "<< x <<", "<< #y <<": "<< y <<endl

using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int, int> pii;
typedef vector<int> vi;
typedef vector<vector<int> > vvi;
typedef vector<ll> vll;
typedef vector<vector<ll> > vvll;
template<class T> using vv=vector<vector< T > >;

int h, w;
deque<deque<bool> > arrived;
vvi board;

vi dh = {-1, -1, -1,  0, 0,  1, 1, 1};
vi dw = {-1,  0,  1, -1, 1, -1, 0, 1};

// amount of cells, minimum of h, maximum of h
tuple<int, int, int> dfs(int ih, int jw) {
  int num = 1;
  int minh, maxh;
  minh = maxh = ih;
  queue<pii> st;
  st.push(make_pair(ih, jw));
  while (!st.empty()) {
    auto cell = st.front();
    st.pop();
    int nexth, nextw;
    rep (i, 8) {
      nexth = cell.first;
      nextw = cell.second;
      nexth += dh[i];
      nextw += dw[i];
      if (arrived[nexth][nextw] || board[nexth][nextw] == 0) {
        continue;
      }
      arrived[nexth][nextw] = true;
      num += 1;
      minh = min(minh, nexth);
      maxh = max(maxh, nexth);
      st.push(make_pair(nexth, nextw));
    }
  }
  return make_tuple(num, minh, maxh);
}

int main() {
  scanf("%d %d", &h, &w);
  arrived.assign(h, deque<bool>(w, false));
  board.assign(h, vi(w, 0));
  rep (i, h) {
    rep (j, w) {
      char tmp;
      scanf(" %c", &tmp);
      if (tmp == 'o') {
        board[i][j] = 1;
      }
    }
  }
  map<int, int> mp;
  mp[12] = 0;
  mp[16] = 1;
  mp[11] = 2;
  vi ans(3, 0);
  rep (i, h) {
    rep (j, w) {
      if (arrived[i][j]) {
        continue;
      }
      arrived[i][j] = true;
      if (board[i][j] == 0) {
        continue;
      }
      int num, minh, maxh;
      tie(num, minh, maxh) = dfs(i, j);
      int ratio = (maxh + 1 - minh) / 5;
      ans[mp[num/(ratio * ratio)]] += 1;
    }
  }
  printf("%d %d %d\n", ans[0], ans[1], ans[2]);
  return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:79:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d", &h, &w);
                         ^
./Main.cpp:85:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
       scanf(" %c", &tmp);
                         ^

Judge Result