답안 #99446 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
99446	2019-03-04T06:47:25 Z	psmao	Dango Maker (JOI18_dango_maker)	C++14	13 / 100	59 ms	48508 KB

dango_maker

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

#define fo(i,s,t) for(int i = s; i <= t; ++ i)
#define fd(i,s,t) for(int i = s; i >= t; -- i)
#define bf(i,s) for(int i = head[s]; i; i = e[i].next)
#define mp make_pair
#define fi first
#define se second
#define pii pair<int,int>
#define pb push_back
#define VI vector<int>
#define sf scanf
#define pf printf
#define fp freopen
#define SZ(x) ((int)(x).size())
#ifdef MPS
#define D(x...) printf(x)
#else
#define D(x...)
#endif
typedef long long ll;
typedef double db;
typedef unsigned long long ull;
const int inf = 1<<30;
const ll INF = 1ll<<60;
const db Inf = 1e20;
const db eps = 1e-9;

void gmax(int &a,int b){a = (a > b ? a : b);}
void gmin(int &a,int b){a = (a < b ? a : b);}

const int maxn = 1001;

int n, m;
bool b[maxn*maxn], seen[maxn*maxn];
int s0, s1;
char a[maxn][maxn];
VI adj[maxn*maxn*2];

void link(int u, int v) {adj[u].pb(v); adj[v].pb(u);}
bool color(int x, int c=0)
{
	seen[x] = true;
	b[x] = c;
	if(c == 0) s0 ++; else s1 ++;
	for(auto p : adj[x]) 
		if(seen[p] && b[p] == c) return false;
		else if(!seen[p] && !color(p, c^1)) return false;
	return true;
}
int p(int x, int y){return (x-1)*m+y;}
int pp(int x, int y){return (x-1)*m+y+n*m;}
int main()
{
	#ifdef MPS
		fp("1.in","r",stdin);
		fp("1.out","w",stdout);
	#endif
	sf("%d%d",&n,&m);
	fo(i,1,n) sf("%s",a[i]+1);
	fo(i,1,n) fo(j,1,m) if(a[i][j] == 'R')
	{
		if(j+2 <= m && a[i][j+1] == 'G' && a[i][j+2] == 'W')
		{
			if(i>1 && i < n && a[i-1][j+1] == 'R' && a[i+1][j+1] == 'W') 
				link(p(i,j), pp(i-1,j+1));
			if(i>2 && a[i-2][j+2] == 'R' && a[i-1][j+2] == 'G') 
				link(p(i,j), pp(i-2,j+2));
			if(i <= n-2 && a[i+1][j] == 'G' && a[i+2][j] == 'W') 
				link(p(i,j), pp(i,j));
		}
		if(i+2 <= n && a[i+1][j] == 'G' && a[i+2][j] == 'W')
		{
			if(j>1 && j < m && a[i+1][j-1] == 'R' && a[i+1][j+1] == 'W') 
				link(pp(i,j), p(i+1,j-1));
			if(j>2 && a[i+2][j-2] == 'R' && a[i+2][j-1] == 'G') 
				link(pp(i,j), p(i+2,j-2));
			if(j <= m-2 && a[i][j+1] == 'G' && a[i][j+2] == 'W') 
				link(pp(i,j), p(i,j));
		}
	}
	int ans = 0;
	memset(seen,false,sizeof(seen));
	fo(i,1,n) fo(j,1,m) if(a[i][j] == 'R') 
	{
		if(j+2 <= m && a[i][j+1] == 'G' && a[i][j+2] == 'W')
		{
			int x = p(i,j);
			if(!seen[x])
			{
				s0 = s1 = 0; 
				assert(color(x));
				ans += max(s0, s1);
			}
		}
		if(i+2 <= n && a[i+1][j] == 'G' && a[i+2][j] == 'W')
		{
			int x = pp(i,j);
			if(!seen[x])
			{
				s0 = s1 = 0; 
				assert(color(x));
				ans += max(s0, s1);
			}
		}
	}
	pf("%d\n",ans);
	return 0;
}

Compilation message

dango_maker.cpp: In function 'int main()':
dango_maker.cpp:60:4: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  sf("%d%d",&n,&m);
    ^
dango_maker.cpp:61:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  fo(i,1,n) sf("%s",a[i]+1);
              ^

Subtask #1
13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	47 ms	48376 KB	Output is correct
2	Correct	48 ms	48376 KB	Output is correct
3	Correct	49 ms	48376 KB	Output is correct
4	Correct	56 ms	48376 KB	Output is correct
5	Correct	50 ms	48376 KB	Output is correct
6	Correct	47 ms	48376 KB	Output is correct
7	Correct	47 ms	48380 KB	Output is correct
8	Correct	48 ms	48376 KB	Output is correct
9	Correct	47 ms	48376 KB	Output is correct
10	Correct	48 ms	48376 KB	Output is correct
11	Correct	48 ms	48380 KB	Output is correct
12	Correct	52 ms	48376 KB	Output is correct
13	Correct	50 ms	48508 KB	Output is correct
14	Correct	56 ms	48376 KB	Output is correct
15	Correct	58 ms	48376 KB	Output is correct
16	Correct	46 ms	48376 KB	Output is correct

Subtask #2
0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	47 ms	48376 KB	Output is correct
2	Correct	48 ms	48376 KB	Output is correct
3	Correct	49 ms	48376 KB	Output is correct
4	Correct	56 ms	48376 KB	Output is correct
5	Correct	50 ms	48376 KB	Output is correct
6	Correct	47 ms	48376 KB	Output is correct
7	Correct	47 ms	48380 KB	Output is correct
8	Correct	48 ms	48376 KB	Output is correct
9	Correct	47 ms	48376 KB	Output is correct
10	Correct	48 ms	48376 KB	Output is correct
11	Correct	48 ms	48380 KB	Output is correct
12	Correct	52 ms	48376 KB	Output is correct
13	Correct	50 ms	48508 KB	Output is correct
14	Correct	56 ms	48376 KB	Output is correct
15	Correct	58 ms	48376 KB	Output is correct
16	Correct	46 ms	48376 KB	Output is correct
17	Correct	50 ms	48376 KB	Output is correct
18	Correct	48 ms	48376 KB	Output is correct
19	Correct	48 ms	48376 KB	Output is correct
20	Correct	47 ms	48376 KB	Output is correct
21	Correct	51 ms	48348 KB	Output is correct
22	Correct	47 ms	48376 KB	Output is correct
23	Correct	46 ms	48504 KB	Output is correct
24	Correct	47 ms	48376 KB	Output is correct
25	Correct	46 ms	48376 KB	Output is correct
26	Correct	52 ms	48376 KB	Output is correct
27	Correct	46 ms	48376 KB	Output is correct
28	Correct	49 ms	48332 KB	Output is correct
29	Correct	48 ms	48376 KB	Output is correct
30	Correct	47 ms	48424 KB	Output is correct
31	Correct	59 ms	48504 KB	Output is correct
32	Correct	54 ms	48376 KB	Output is correct
33	Correct	48 ms	48348 KB	Output is correct
34	Incorrect	58 ms	48376 KB	Output isn't correct
35	Halted	0 ms	0 KB	-

Subtask #3
0 / 67.0

#	결과	실행 시간	메모리	Grader output
1	Correct	47 ms	48376 KB	Output is correct
2	Correct	48 ms	48376 KB	Output is correct
3	Correct	49 ms	48376 KB	Output is correct
4	Correct	56 ms	48376 KB	Output is correct
5	Correct	50 ms	48376 KB	Output is correct
6	Correct	47 ms	48376 KB	Output is correct
7	Correct	47 ms	48380 KB	Output is correct
8	Correct	48 ms	48376 KB	Output is correct
9	Correct	47 ms	48376 KB	Output is correct
10	Correct	48 ms	48376 KB	Output is correct
11	Correct	48 ms	48380 KB	Output is correct
12	Correct	52 ms	48376 KB	Output is correct
13	Correct	50 ms	48508 KB	Output is correct
14	Correct	56 ms	48376 KB	Output is correct
15	Correct	58 ms	48376 KB	Output is correct
16	Correct	46 ms	48376 KB	Output is correct
17	Correct	50 ms	48376 KB	Output is correct
18	Correct	48 ms	48376 KB	Output is correct
19	Correct	48 ms	48376 KB	Output is correct
20	Correct	47 ms	48376 KB	Output is correct
21	Correct	51 ms	48348 KB	Output is correct
22	Correct	47 ms	48376 KB	Output is correct
23	Correct	46 ms	48504 KB	Output is correct
24	Correct	47 ms	48376 KB	Output is correct
25	Correct	46 ms	48376 KB	Output is correct
26	Correct	52 ms	48376 KB	Output is correct
27	Correct	46 ms	48376 KB	Output is correct
28	Correct	49 ms	48332 KB	Output is correct
29	Correct	48 ms	48376 KB	Output is correct
30	Correct	47 ms	48424 KB	Output is correct
31	Correct	59 ms	48504 KB	Output is correct
32	Correct	54 ms	48376 KB	Output is correct
33	Correct	48 ms	48348 KB	Output is correct
34	Incorrect	58 ms	48376 KB	Output isn't correct
35	Halted	0 ms	0 KB	-

답안 #99446

Compilation message

Subtask #1 13.0 / 13.0

Subtask #2 0 / 20.0

Subtask #3 0 / 67.0

Subtask #1
13.0 / 13.0

Subtask #2
0 / 20.0

Subtask #3
0 / 67.0