oj.uz

Submission #300537

# Submission time Handle Problem Language Result Execution time Memory
300537 2020-09-17T09:02:59 Z CSQ31 Dango Maker (JOI18_dango_maker) C++14
100 / 100
 259 ms 10488 KB 
#pragma GCC optimize("Ofast") 
#include<bits/stdc++.h>
using namespace std;
#define pb push_back
#define fi first
#define se second
#define sz(a) a.size()
#define all(a) a.begin(),a.end()
#define lb lower_bound
#define ub upper_bound
#define owo ios_base::sync_with_stdio(0);cin.tie(0);
#define MOD (ll)(1e8)
#define INF (ll)(1e18)
#define debug(...) fprintf(stderr, __VA_ARGS__),fflush(stderr)
#define time__(d) for(long blockTime = 0; (blockTime == 0 ? (blockTime=clock()) != 0 : false);\
debug("%s time : %.4fs\n", d, (double)(clock() - blockTime) / CLOCKS_PER_SEC))
typedef long long int ll;
typedef long double ld;
typedef pair<ll,ll> PII;
typedef pair<int,int> pii;
typedef vector<vector<int>> vii;
typedef vector<vector<ll>> VII;
ll gcd(ll a,ll b){if(!b)return a;else return gcd(b,a%b);}
int n,m;
string grid[3001];
bool r[3005];
bool w[3005];
ll dr[3005];
ll dw[3005];
int solve(int n){
	for(int i=1;i<=n;i++){
		dr[i] = dr[i-1];
		dw[i] = dw[i-1];
		if(i>1){
			dr[i] = max(dr[i],dw[i-2]);
			dw[i] = max(dw[i],dr[i-2]);
		}
		if(r[i-1] && w[i])dw[i]++;
		if(w[i-1] && r[i])dr[i]++;
	}
	return max(dr[n],dw[n]);
}
bool ok(int x,int y){return x>=0 && y>=0 && x<n && y<m;}
bool okc(int x,int y,char c){return ok(x,y) && grid[x][y] == c;}
int main()
{
	owo
	ll ans = 0;
	cin>>n>>m;
	for(int i=0;i<n;i++)cin>>grid[i];
	for(int i=0;i<n+m-1;i++){
		vector<pii>v;
		for(int j=0;j<=i;j++){
			if(okc(j,i-j,'G'))v.pb({j,i-j});
		}
		for(int i=0;i<(int)(v.size());){
			int e = i;
			while(e<(int)(v.size()) && v[e].fi - v[i].fi == e-i)e++;
            r[0] = okc(v[i].fi-1,v[i].se,'R');
            w[0] = okc(v[i].fi,v[i].se+1,'W');
            for(int j=i;j<e;j++){
				r[j-i+1] = okc(v[j].fi,v[j].se-1,'R');
				w[j-i+1] = okc(v[j].fi+1,v[j].se,'W');
			}
			ans+=solve(e-i);
			i = e;
		}
		
	}
	cout<<ans;
}

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 512 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 416 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 512 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 512 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 416 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 512 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 1 ms 512 KB Output is correct
22 Correct 1 ms 384 KB Output is correct
23 Correct 1 ms 384 KB Output is correct
24 Correct 1 ms 384 KB Output is correct
25 Correct 1 ms 384 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 1 ms 512 KB Output is correct
28 Correct 1 ms 384 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 1 ms 512 KB Output is correct
31 Correct 1 ms 384 KB Output is correct
32 Correct 1 ms 512 KB Output is correct
33 Correct 1 ms 384 KB Output is correct
34 Correct 1 ms 384 KB Output is correct
35 Correct 1 ms 384 KB Output is correct
36 Correct 1 ms 512 KB Output is correct
37 Correct 1 ms 384 KB Output is correct
38 Correct 1 ms 384 KB Output is correct
39 Correct 1 ms 384 KB Output is correct
40 Correct 1 ms 384 KB Output is correct
41 Correct 1 ms 384 KB Output is correct
42 Correct 1 ms 512 KB Output is correct
43 Correct 1 ms 384 KB Output is correct
44 Correct 1 ms 512 KB Output is correct
45 Correct 1 ms 384 KB Output is correct
46 Correct 1 ms 384 KB Output is correct
47 Correct 1 ms 384 KB Output is correct
48 Correct 1 ms 384 KB Output is correct
49 Correct 1 ms 384 KB Output is correct
50 Correct 1 ms 384 KB Output is correct
51 Correct 1 ms 384 KB Output is correct
52 Correct 1 ms 384 KB Output is correct
53 Correct 1 ms 512 KB Output is correct

Subtask #3
67.0 / 67.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 512 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 416 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 512 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 1 ms 512 KB Output is correct
22 Correct 1 ms 384 KB Output is correct
23 Correct 1 ms 384 KB Output is correct
24 Correct 1 ms 384 KB Output is correct
25 Correct 1 ms 384 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 1 ms 512 KB Output is correct
28 Correct 1 ms 384 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 1 ms 512 KB Output is correct
31 Correct 1 ms 384 KB Output is correct
32 Correct 1 ms 512 KB Output is correct
33 Correct 1 ms 384 KB Output is correct
34 Correct 1 ms 384 KB Output is correct
35 Correct 1 ms 384 KB Output is correct
36 Correct 1 ms 512 KB Output is correct
37 Correct 1 ms 384 KB Output is correct
38 Correct 1 ms 384 KB Output is correct
39 Correct 1 ms 384 KB Output is correct
40 Correct 1 ms 384 KB Output is correct
41 Correct 1 ms 384 KB Output is correct
42 Correct 1 ms 512 KB Output is correct
43 Correct 1 ms 384 KB Output is correct
44 Correct 1 ms 512 KB Output is correct
45 Correct 1 ms 384 KB Output is correct
46 Correct 1 ms 384 KB Output is correct
47 Correct 1 ms 384 KB Output is correct
48 Correct 1 ms 384 KB Output is correct
49 Correct 1 ms 384 KB Output is correct
50 Correct 1 ms 384 KB Output is correct
51 Correct 1 ms 384 KB Output is correct
52 Correct 1 ms 384 KB Output is correct
53 Correct 1 ms 512 KB Output is correct
54 Correct 7 ms 384 KB Output is correct
55 Correct 5 ms 512 KB Output is correct
56 Correct 7 ms 512 KB Output is correct
57 Correct 3 ms 384 KB Output is correct
58 Correct 25 ms 1536 KB Output is correct
59 Correct 256 ms 10232 KB Output is correct
60 Correct 259 ms 10232 KB Output is correct
61 Correct 257 ms 10360 KB Output is correct
62 Correct 5 ms 384 KB Output is correct
63 Correct 245 ms 9976 KB Output is correct
64 Correct 163 ms 10360 KB Output is correct
65 Correct 162 ms 10488 KB Output is correct
66 Correct 162 ms 10384 KB Output is correct
67 Correct 228 ms 10112 KB Output is correct
68 Correct 231 ms 10232 KB Output is correct
69 Correct 231 ms 10232 KB Output is correct
70 Correct 12 ms 1536 KB Output is correct
71 Correct 12 ms 1536 KB Output is correct
72 Correct 12 ms 1536 KB Output is correct
73 Correct 12 ms 1536 KB Output is correct
74 Correct 13 ms 1664 KB Output is correct
75 Correct 12 ms 1536 KB Output is correct
76 Correct 12 ms 1536 KB Output is correct
77 Correct 12 ms 1536 KB Output is correct
78 Correct 12 ms 1536 KB Output is correct
79 Correct 13 ms 1536 KB Output is correct
80 Correct 12 ms 1536 KB Output is correct
81 Correct 12 ms 1536 KB Output is correct
82 Correct 12 ms 1536 KB Output is correct
83 Correct 12 ms 1664 KB Output is correct
84 Correct 12 ms 1536 KB Output is correct
85 Correct 12 ms 1536 KB Output is correct
86 Correct 12 ms 1536 KB Output is correct
87 Correct 12 ms 1536 KB Output is correct
88 Correct 12 ms 1536 KB Output is correct
89 Correct 12 ms 1536 KB Output is correct
90 Correct 12 ms 1536 KB Output is correct