oj.uz

Submission #171002

# Submission time Handle Problem Language Result Execution time Memory
171002 2019-12-27T02:09:46 Z errorgorn Growing Vegetable is Fun 3 (JOI19_ho_t3) C++14
100 / 100
 206 ms 101760 KB 
#include <cstdio>
#include <vector>
#include <cmath>
#include <algorithm>
#include <cstring>
using namespace std;
int n;
char arr[405];
int pre[405][3];
vector<int> r,g,y;
int memo[205][205][205][3];
const int INF=1000000000;
int dp(int sr,int sg,int sy,int last){ ///1000000000 for invalid case
	if (!sr && !sg && !sy) return 0;
	else if (memo[sr][sg][sy][last]!=-1) return memo[sr][sg][sy][last];
	int ans=INF;
	if (last!=0 && sr) ans=min(ans,dp(sr-1,sg,sy,0)
		+max(0,pre[r[sr-1]][1]-sg)+max(0,pre[r[sr-1]][2]-sy));
	if (last!=1 && sg) ans=min(ans,dp(sr,sg-1,sy,1)
		+max(0,pre[g[sg-1]][0]-sr)+max(0,pre[g[sg-1]][2]-sy));
	if (last!=2 && sy) ans=min(ans,dp(sr,sg,sy-1,2)
		+max(0,pre[y[sy-1]][0]-sr)+max(0,pre[y[sy-1]][1]-sg));
	//printf("%d %d %d %d %d\n",sr,sg,sy,last,ans);
	return memo[sr][sg][sy][last]=ans;
}
int main(){
	//freopen("input.txt","r",stdin);
	scanf("%d",&n);
	getchar();
	for (int x=0;x<n;x++){
		arr[x]=getchar();
		if (arr[x]=='R') r.push_back(x);
		else if (arr[x]=='G') g.push_back(x);
		else y.push_back(x);
	}
	if (r.size()>200 || g.size()>200 || y.size()>200) {
		printf("-1\n");
		return 0;
	}
	for (int x=0;x<n;x++){
		if (arr[x]=='R') pre[x][0]++;
		else if (arr[x]=='G') pre[x][1]++;
		else pre[x][2]++;
		for (int y=0;y<3;y++) pre[x+1][y]=pre[x][y];
	}
	memset(memo,-1,sizeof(memo));
	int ans=INF;
	if (!r.empty()) ans=min(ans,dp(r.size()-1,g.size(),y.size(),0));
	if (!g.empty()) ans=min(ans,dp(r.size(),g.size()-1,y.size(),1));
	if (!y.empty()) ans=min(ans,dp(r.size(),g.size(),y.size()-1,2));
	printf("%d\n",(ans==INF)?-1:ans);
}

Compilation message

joi2019_ho_t3.cpp: In function 'int main()':
joi2019_ho_t3.cpp:28:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
  ~~~~~^~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 86 ms 101496 KB Output is correct
2 Correct 86 ms 101496 KB Output is correct
3 Correct 86 ms 101496 KB Output is correct
4 Correct 86 ms 101496 KB Output is correct
5 Correct 88 ms 101624 KB Output is correct
6 Correct 86 ms 101404 KB Output is correct
7 Correct 87 ms 101496 KB Output is correct
8 Correct 87 ms 101496 KB Output is correct
9 Correct 87 ms 101496 KB Output is correct
10 Correct 87 ms 101496 KB Output is correct
11 Correct 87 ms 101496 KB Output is correct
12 Correct 86 ms 101496 KB Output is correct
13 Correct 87 ms 101496 KB Output is correct
14 Correct 86 ms 101500 KB Output is correct
15 Correct 86 ms 101496 KB Output is correct
16 Correct 87 ms 101496 KB Output is correct
17 Correct 87 ms 101624 KB Output is correct

Subtask #2
55.0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 86 ms 101496 KB Output is correct
2 Correct 86 ms 101496 KB Output is correct
3 Correct 86 ms 101496 KB Output is correct
4 Correct 86 ms 101496 KB Output is correct
5 Correct 88 ms 101624 KB Output is correct
6 Correct 86 ms 101404 KB Output is correct
7 Correct 87 ms 101496 KB Output is correct
8 Correct 87 ms 101496 KB Output is correct
9 Correct 87 ms 101496 KB Output is correct
10 Correct 87 ms 101496 KB Output is correct
11 Correct 87 ms 101496 KB Output is correct
12 Correct 86 ms 101496 KB Output is correct
13 Correct 87 ms 101496 KB Output is correct
14 Correct 86 ms 101500 KB Output is correct
15 Correct 86 ms 101496 KB Output is correct
16 Correct 87 ms 101496 KB Output is correct
17 Correct 87 ms 101624 KB Output is correct
18 Correct 87 ms 101496 KB Output is correct
19 Correct 87 ms 101496 KB Output is correct
20 Correct 87 ms 101496 KB Output is correct
21 Correct 87 ms 101496 KB Output is correct
22 Correct 87 ms 101496 KB Output is correct
23 Correct 88 ms 101496 KB Output is correct
24 Correct 87 ms 101496 KB Output is correct
25 Correct 87 ms 101496 KB Output is correct
26 Correct 87 ms 101496 KB Output is correct
27 Correct 87 ms 101572 KB Output is correct
28 Correct 88 ms 101496 KB Output is correct
29 Correct 94 ms 101496 KB Output is correct
30 Correct 87 ms 101496 KB Output is correct
31 Correct 89 ms 101496 KB Output is correct
32 Correct 87 ms 101500 KB Output is correct
33 Correct 87 ms 101496 KB Output is correct
34 Correct 86 ms 101496 KB Output is correct
35 Correct 87 ms 101496 KB Output is correct
36 Correct 87 ms 101496 KB Output is correct
37 Correct 87 ms 101496 KB Output is correct
38 Correct 87 ms 101496 KB Output is correct
39 Correct 88 ms 101496 KB Output is correct
40 Correct 87 ms 101496 KB Output is correct
41 Correct 87 ms 101488 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 86 ms 101624 KB Output is correct
2 Correct 86 ms 101496 KB Output is correct
3 Correct 87 ms 101448 KB Output is correct
4 Correct 87 ms 101500 KB Output is correct
5 Correct 87 ms 101496 KB Output is correct
6 Correct 87 ms 101496 KB Output is correct
7 Correct 87 ms 101480 KB Output is correct
8 Correct 87 ms 101496 KB Output is correct
9 Correct 86 ms 101496 KB Output is correct
10 Correct 88 ms 101496 KB Output is correct
11 Correct 87 ms 101496 KB Output is correct
12 Correct 87 ms 101496 KB Output is correct
13 Correct 86 ms 101508 KB Output is correct
14 Correct 86 ms 101496 KB Output is correct
15 Correct 2 ms 380 KB Output is correct
16 Correct 2 ms 376 KB Output is correct

Subtask #4
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 86 ms 101496 KB Output is correct
2 Correct 86 ms 101496 KB Output is correct
3 Correct 86 ms 101496 KB Output is correct
4 Correct 86 ms 101496 KB Output is correct
5 Correct 88 ms 101624 KB Output is correct
6 Correct 86 ms 101404 KB Output is correct
7 Correct 87 ms 101496 KB Output is correct
8 Correct 87 ms 101496 KB Output is correct
9 Correct 87 ms 101496 KB Output is correct
10 Correct 87 ms 101496 KB Output is correct
11 Correct 87 ms 101496 KB Output is correct
12 Correct 86 ms 101496 KB Output is correct
13 Correct 87 ms 101496 KB Output is correct
14 Correct 86 ms 101500 KB Output is correct
15 Correct 86 ms 101496 KB Output is correct
16 Correct 87 ms 101496 KB Output is correct
17 Correct 87 ms 101624 KB Output is correct
18 Correct 87 ms 101496 KB Output is correct
19 Correct 87 ms 101496 KB Output is correct
20 Correct 87 ms 101496 KB Output is correct
21 Correct 87 ms 101496 KB Output is correct
22 Correct 87 ms 101496 KB Output is correct
23 Correct 88 ms 101496 KB Output is correct
24 Correct 87 ms 101496 KB Output is correct
25 Correct 87 ms 101496 KB Output is correct
26 Correct 87 ms 101496 KB Output is correct
27 Correct 87 ms 101572 KB Output is correct
28 Correct 88 ms 101496 KB Output is correct
29 Correct 94 ms 101496 KB Output is correct
30 Correct 87 ms 101496 KB Output is correct
31 Correct 89 ms 101496 KB Output is correct
32 Correct 87 ms 101500 KB Output is correct
33 Correct 87 ms 101496 KB Output is correct
34 Correct 86 ms 101496 KB Output is correct
35 Correct 87 ms 101496 KB Output is correct
36 Correct 87 ms 101496 KB Output is correct
37 Correct 87 ms 101496 KB Output is correct
38 Correct 87 ms 101496 KB Output is correct
39 Correct 88 ms 101496 KB Output is correct
40 Correct 87 ms 101496 KB Output is correct
41 Correct 87 ms 101488 KB Output is correct
42 Correct 86 ms 101624 KB Output is correct
43 Correct 86 ms 101496 KB Output is correct
44 Correct 87 ms 101448 KB Output is correct
45 Correct 87 ms 101500 KB Output is correct
46 Correct 87 ms 101496 KB Output is correct
47 Correct 87 ms 101496 KB Output is correct
48 Correct 87 ms 101480 KB Output is correct
49 Correct 87 ms 101496 KB Output is correct
50 Correct 86 ms 101496 KB Output is correct
51 Correct 88 ms 101496 KB Output is correct
52 Correct 87 ms 101496 KB Output is correct
53 Correct 87 ms 101496 KB Output is correct
54 Correct 86 ms 101508 KB Output is correct
55 Correct 86 ms 101496 KB Output is correct
56 Correct 2 ms 380 KB Output is correct
57 Correct 2 ms 376 KB Output is correct
58 Correct 186 ms 101496 KB Output is correct
59 Correct 187 ms 101508 KB Output is correct
60 Correct 206 ms 101568 KB Output is correct
61 Correct 194 ms 101532 KB Output is correct
62 Correct 2 ms 504 KB Output is correct
63 Correct 88 ms 101496 KB Output is correct
64 Correct 102 ms 101624 KB Output is correct
65 Correct 150 ms 101496 KB Output is correct
66 Correct 200 ms 101468 KB Output is correct
67 Correct 185 ms 101556 KB Output is correct
68 Correct 193 ms 101760 KB Output is correct
69 Correct 193 ms 101560 KB Output is correct
70 Correct 192 ms 101496 KB Output is correct
71 Correct 184 ms 101532 KB Output is correct
72 Correct 2 ms 256 KB Output is correct
73 Correct 2 ms 376 KB Output is correct