Submission #43540

#	Time	Username	Problem	Language	Result	Execution time	Memory
43540		wxh010910	Dango Maker (JOI18_dango_maker)	C++14	13 / 100	2 ms	860 KiB

dango_maker

#include <bits/stdc++.h>

using namespace std;

#define X first
#define Y second
#define mp make_pair
#define pb push_back
#define Debug(...) fprintf(stderr, __VA_ARGS__)

typedef long long LL;
typedef long double LD;
typedef unsigned int uint;
typedef pair <int, int> pii;
typedef unsigned long long uLL;

template <typename T> inline void Read(T &x) {
  char c = getchar();
  bool f = false;
  for (x = 0; !isdigit(c); c = getchar()) {
    if (c == '-') {
      f = true;
    }
  }
  for (; isdigit(c); c = getchar()) {
    x = x * 10 + c - '0';
  }
  if (f) {
    x = -x;
  }
}

template <typename T> inline bool CheckMax(T &a, const T &b) {
  return a < b ? a = b, true : false;
}

template <typename T> inline bool CheckMin(T &a, const T &b) {
  return a > b ? a = b, true : false;
}

const int N = 3005;

int n, m, ans;
char s[N][N];
bool v[N][N];

int main() {
#ifdef wxh010910
  freopen("d.in", "r", stdin);
#endif
  Read(n), Read(m);
  for (int i = 1; i <= n; ++i) {
    scanf("%s", s[i] + 1);
  }
  for (int i = 1; i <= n; ++i) {
    for (int j = 1; j <= m; ++j) {
      if (!v[i][j] && s[i][j] == 'R') {
        if (s[i + 1][j] == 'G' && s[i + 2][j] == 'W' && !v[i + 1][j] && !v[i + 2][j]) {
          v[i][j] = v[i + 1][j] = v[i + 2][j] = true, ++ans;
        } else if (s[i][j + 1] == 'G' && s[i][j + 2] == 'W' && !v[i][j + 1] && !v[i][j + 2]) {
          v[i][j] = v[i][j + 1] = v[i][j + 2] = true, ++ans;
        }
      }
    }
  }
  printf("%d\n", ans);
#ifdef wxh010910
  Debug("My Time: %.3lfms\n", (double)clock() / CLOCKS_PER_SEC);
#endif
  return 0;
}

Compilation message (stderr)

dango_maker.cpp: In function 'int main()':
dango_maker.cpp:53:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%s", s[i] + 1);
                          ^

• Subtask 1: 13 / 13
• Subtask 2: 0 / 20
• Subtask 3: 0 / 67