oj.uz

Submission #145201

# Submission time Handle Problem Language Result Execution time Memory
145201 2019-08-19T08:54:02 Z TadijaSebez Growing Vegetable is Fun 3 (JOI19_ho_t3) C++11
15 / 100
 188 ms 4316 KB 
#include <bits/stdc++.h>
using namespace std;
const int N=405;
const int inf=1e9+7;
int dp[3][N][N],tmp[3][N][N];
int pos[3][N],cnt[3];
char s[N];
void Clear(int a[3][N][N]){ for(int i=0;i<3;i++) for(int j=0;j<N;j++) for(int k=0;k<N;k++) a[i][j][k]=inf;}
void ckmn(int &a, int b){ a=min(a,b);}
int main()
{
	int n;
	scanf("%i",&n);
	scanf("%s",s+1);
	for(int i=1;i<=n;i++)
	{
		if(s[i]=='R') pos[0][++cnt[0]]=i;
		if(s[i]=='G') pos[1][++cnt[1]]=i;
		if(s[i]=='Y') pos[2][++cnt[2]]=i;
	}
	for(int i=0;i<3;i++) reverse(pos[i]+1,pos[i]+1+cnt[i]);
	Clear(dp);
	//printf("%i %i %i\n",cnt[0],cnt[1],cnt[2]);
	if(cnt[0]) dp[0][cnt[0]-1][cnt[1]]=pos[0][cnt[0]]-1;
	if(cnt[1]) dp[1][cnt[0]][cnt[1]-1]=pos[1][cnt[1]]-1;
	if(cnt[2]) dp[2][cnt[0]][cnt[1]]=pos[2][cnt[2]]-1;
	for(int i=2;i<=n;i++)
	{
		Clear(tmp);
		for(int f=0;f<3;f++)
			for(int r=0;r<=cnt[0];r++)
				for(int g=0;g<=cnt[1];g++) if(dp[f][r][g]!=inf)
				{
					int y=n-i-r-g+1;
					//printf("%i %i %i %i: %i\n",f,r,g,y,dp[f][r][g]);
                    if(f!=0 && r) ckmn(tmp[0][r-1][g],dp[f][r][g]+max(0,pos[0][r]-i));
                    if(f!=1 && g) ckmn(tmp[1][r][g-1],dp[f][r][g]+max(0,pos[1][g]-i));
                    if(f!=2 && y) ckmn(tmp[2][r][g],dp[f][r][g]+max(0,pos[2][y]-i));
				}
		for(int f=0;f<3;f++)
			for(int r=0;r<=cnt[0];r++)
				for(int g=0;g<=cnt[1];g++)
					dp[f][r][g]=tmp[f][r][g];
	}
	int ans=inf;
	for(int f=0;f<3;f++)
		for(int r=0;r<=cnt[0];r++)
			for(int g=0;g<=cnt[1];g++)
				ckmn(ans,dp[f][r][g]);
	printf("%i\n",ans==inf?-1:ans);
	return 0;
}

Compilation message

joi2019_ho_t3.cpp: In function 'int main()':
joi2019_ho_t3.cpp:13:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%i",&n);
  ~~~~~^~~~~~~~~
joi2019_ho_t3.cpp:14:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%s",s+1);
  ~~~~~^~~~~~~~~~

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2296 KB Output is correct
2 Correct 5 ms 4216 KB Output is correct
3 Correct 7 ms 4216 KB Output is correct
4 Correct 7 ms 4216 KB Output is correct
5 Correct 9 ms 4220 KB Output is correct
6 Correct 9 ms 4216 KB Output is correct
7 Correct 10 ms 4216 KB Output is correct
8 Correct 9 ms 4216 KB Output is correct
9 Correct 9 ms 4216 KB Output is correct
10 Correct 9 ms 4216 KB Output is correct
11 Incorrect 9 ms 4264 KB Output isn't correct
12 Halted 0 ms 0 KB -

Subtask #2
0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2296 KB Output is correct
2 Correct 5 ms 4216 KB Output is correct
3 Correct 7 ms 4216 KB Output is correct
4 Correct 7 ms 4216 KB Output is correct
5 Correct 9 ms 4220 KB Output is correct
6 Correct 9 ms 4216 KB Output is correct
7 Correct 10 ms 4216 KB Output is correct
8 Correct 9 ms 4216 KB Output is correct
9 Correct 9 ms 4216 KB Output is correct
10 Correct 9 ms 4216 KB Output is correct
11 Incorrect 9 ms 4264 KB Output isn't correct
12 Halted 0 ms 0 KB -

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 4216 KB Output is correct
2 Correct 186 ms 4216 KB Output is correct
3 Correct 185 ms 4216 KB Output is correct
4 Correct 186 ms 4216 KB Output is correct
5 Correct 187 ms 4216 KB Output is correct
6 Correct 186 ms 4316 KB Output is correct
7 Correct 186 ms 4216 KB Output is correct
8 Correct 185 ms 4224 KB Output is correct
9 Correct 183 ms 4216 KB Output is correct
10 Correct 187 ms 4216 KB Output is correct
11 Correct 185 ms 4216 KB Output is correct
12 Correct 73 ms 4256 KB Output is correct
13 Correct 103 ms 4220 KB Output is correct
14 Correct 135 ms 4216 KB Output is correct
15 Correct 188 ms 4220 KB Output is correct
16 Correct 187 ms 4216 KB Output is correct

Subtask #4
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2296 KB Output is correct
2 Correct 5 ms 4216 KB Output is correct
3 Correct 7 ms 4216 KB Output is correct
4 Correct 7 ms 4216 KB Output is correct
5 Correct 9 ms 4220 KB Output is correct
6 Correct 9 ms 4216 KB Output is correct
7 Correct 10 ms 4216 KB Output is correct
8 Correct 9 ms 4216 KB Output is correct
9 Correct 9 ms 4216 KB Output is correct
10 Correct 9 ms 4216 KB Output is correct
11 Incorrect 9 ms 4264 KB Output isn't correct
12 Halted 0 ms 0 KB -