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Submission #217376

# Submission time Handle Problem Language Result Execution time Memory
217376 2020-03-29T13:35:55 Z kshitij_sodani Growing Vegetable is Fun 3 (JOI19_ho_t3) C++17
100 / 100
 429 ms 755832 KB 
#include <iostream>
#include <bits/stdc++.h>
using namespace std;
typedef long long int llo;
#define mp make_pair
#define pb push_back
#define a first
#define b second
#define endl "\n"
llo mod=1000000007;
int n;
int it[401];
int dp[401][401][401][3];
vector<int> aa;
vector<int> bb;
vector<int> cc;
int main(){
	ios_base::sync_with_stdio(0); cin.tie(0);
	cin>>n;
	char ss;
	int co=0;
	int co2=0;
	for(int i=0;i<n;i++){
		for(int j=0;j<=n;j++){
			for(int k=0;k<=n;k++){
				for(int l=0;l<3;l++){
					dp[i][j][k][l]=400000;
				}
			}
		}
	}
	int pre[n][3];
	for(int i=0;i<n;i++){
		if(i==0){
			pre[i][0]=0;
			pre[i][1]=0;
			pre[i][2]=0;
		}
		else{
			pre[i][0]=pre[i-1][0];
			pre[i][1]=pre[i-1][1];
			pre[i][2]=pre[i-1][2];
		}
		cin>>ss;
		if(ss=='R'){
			co+=1;
			aa.pb(i);
			pre[i][0]+=1;
		}
		else if(ss=='G'){
			it[i]=1;
			co2+=1;
			pre[i][1]+=1;
			bb.pb(i);
		}
		else{
			pre[i][2]+=1;
			cc.pb(i);
		}
	}
	if(co>(n+1)/2 or co2>(n+1)/2 or (n-co-co2)>(n+1)/2){
		cout<<-1<<endl;
		return 0;
	}
	for(int i=0;i<n;i++){
		for(int j=0;j<=min((int)aa.size(),i+1);j++){
			for(int k=0;k<=min((int)bb.size(),i+1-j);k++){
				if((i+1)-j-k>(i+2)/2 or j>(i+2)/2 or k>(i+2)/2 or j+k>i+1 or j>aa.size() or k>bb.size() or i+1-j-k>cc.size()){
					continue;
				}
			//	cout<<i+1<<" "<<j<<" "<<k<<endl;
				if(j>0){
					int co=0;
					if(k>0){
						co+=max(pre[bb[k-1]][1]-pre[aa[j-1]][1],0);
					}
					if(i+1-j-k>0){
						co+=max(pre[cc[i-j-k]][2]-pre[aa[j-1]][2],0);
					}
					if(i>0){
						dp[i][j][k][0]=co+min(dp[i-1][j-1][k][1],dp[i-1][j-1][k][2]);
					}
					else{
						dp[i][j][k][0]=co;
					}
				}
				if(k>0){
					int co=0;
					if(j>0){
						co+=max(pre[aa[j-1]][0]-pre[bb[k-1]][0],0);
					}
					if(i+1-j-k>0){
						co+=max(pre[cc[i-j-k]][2]-pre[bb[k-1]][2],0);
					}
					if(i>0){
						dp[i][j][k][1]=co+min(dp[i-1][j][k-1][0],dp[i-1][j][k-1][2]);
					}
					else{
						dp[i][j][k][1]=co;
					}
				}
				if(j+k<i+1){
					int co=0;
					if(k>0){
						co+=max(pre[bb[k-1]][1]-pre[cc[i-j-k]][1],0);
					}
					if(j>0){
						co+=max(pre[aa[j-1]][0]-pre[cc[i-j-k]][0],0);
					}
					if(i>0){
						dp[i][j][k][2]=co+min(dp[i-1][j][k][0],dp[i-1][j][k][1]);
					}
					else{
						dp[i][j][k][2]=co;
					}
				}


			}
		}
	}
	int mi=400000;
	for(int j=0;j<=3;j++){
			mi=min(mi,dp[n-1][aa.size()][bb.size()][j]);
	}

	cout<<mi<<endl;
 
	return 0;
}

Compilation message

joi2019_ho_t3.cpp: In function 'int main()':
joi2019_ho_t3.cpp:68:67: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     if((i+1)-j-k>(i+2)/2 or j>(i+2)/2 or k>(i+2)/2 or j+k>i+1 or j>aa.size() or k>bb.size() or i+1-j-k>cc.size()){
                                                                  ~^~~~~~~~~~
joi2019_ho_t3.cpp:68:82: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     if((i+1)-j-k>(i+2)/2 or j>(i+2)/2 or k>(i+2)/2 or j+k>i+1 or j>aa.size() or k>bb.size() or i+1-j-k>cc.size()){
                                                                                 ~^~~~~~~~~~
joi2019_ho_t3.cpp:68:103: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     if((i+1)-j-k>(i+2)/2 or j>(i+2)/2 or k>(i+2)/2 or j+k>i+1 or j>aa.size() or k>bb.size() or i+1-j-k>cc.size()){
                                                                                                ~~~~~~~^~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 5 ms 896 KB Output is correct
5 Correct 5 ms 1408 KB Output is correct
6 Correct 6 ms 1408 KB Output is correct
7 Correct 5 ms 1408 KB Output is correct
8 Correct 5 ms 1408 KB Output is correct
9 Correct 5 ms 1408 KB Output is correct
10 Correct 5 ms 1408 KB Output is correct
11 Correct 5 ms 1408 KB Output is correct
12 Correct 5 ms 1408 KB Output is correct
13 Correct 5 ms 1408 KB Output is correct
14 Correct 5 ms 1280 KB Output is correct
15 Correct 5 ms 1408 KB Output is correct
16 Correct 5 ms 1408 KB Output is correct
17 Correct 5 ms 1280 KB Output is correct

Subtask #2
55.0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 5 ms 896 KB Output is correct
5 Correct 5 ms 1408 KB Output is correct
6 Correct 6 ms 1408 KB Output is correct
7 Correct 5 ms 1408 KB Output is correct
8 Correct 5 ms 1408 KB Output is correct
9 Correct 5 ms 1408 KB Output is correct
10 Correct 5 ms 1408 KB Output is correct
11 Correct 5 ms 1408 KB Output is correct
12 Correct 5 ms 1408 KB Output is correct
13 Correct 5 ms 1408 KB Output is correct
14 Correct 5 ms 1280 KB Output is correct
15 Correct 5 ms 1408 KB Output is correct
16 Correct 5 ms 1408 KB Output is correct
17 Correct 5 ms 1280 KB Output is correct
18 Correct 13 ms 17792 KB Output is correct
19 Correct 12 ms 17792 KB Output is correct
20 Correct 16 ms 17792 KB Output is correct
21 Correct 12 ms 17792 KB Output is correct
22 Correct 14 ms 17792 KB Output is correct
23 Correct 12 ms 17792 KB Output is correct
24 Correct 13 ms 17792 KB Output is correct
25 Correct 13 ms 17792 KB Output is correct
26 Correct 13 ms 17792 KB Output is correct
27 Correct 14 ms 17792 KB Output is correct
28 Correct 13 ms 17792 KB Output is correct
29 Correct 18 ms 17920 KB Output is correct
30 Correct 16 ms 17792 KB Output is correct
31 Correct 14 ms 17792 KB Output is correct
32 Correct 16 ms 17768 KB Output is correct
33 Correct 13 ms 17152 KB Output is correct
34 Correct 12 ms 17160 KB Output is correct
35 Correct 15 ms 16640 KB Output is correct
36 Correct 15 ms 17152 KB Output is correct
37 Correct 12 ms 16000 KB Output is correct
38 Correct 14 ms 17792 KB Output is correct
39 Correct 14 ms 17792 KB Output is correct
40 Correct 15 ms 17152 KB Output is correct
41 Correct 13 ms 17792 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 414 ms 755620 KB Output is correct
3 Correct 406 ms 753476 KB Output is correct
4 Correct 399 ms 755576 KB Output is correct
5 Correct 404 ms 755680 KB Output is correct
6 Correct 400 ms 755576 KB Output is correct
7 Correct 416 ms 753460 KB Output is correct
8 Correct 404 ms 753400 KB Output is correct
9 Correct 402 ms 749688 KB Output is correct
10 Correct 406 ms 755576 KB Output is correct
11 Correct 417 ms 755576 KB Output is correct
12 Correct 106 ms 201848 KB Output is correct
13 Correct 185 ms 356088 KB Output is correct
14 Correct 276 ms 516044 KB Output is correct
15 Correct 388 ms 755576 KB Output is correct
16 Correct 394 ms 755832 KB Output is correct

Subtask #4
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 5 ms 896 KB Output is correct
5 Correct 5 ms 1408 KB Output is correct
6 Correct 6 ms 1408 KB Output is correct
7 Correct 5 ms 1408 KB Output is correct
8 Correct 5 ms 1408 KB Output is correct
9 Correct 5 ms 1408 KB Output is correct
10 Correct 5 ms 1408 KB Output is correct
11 Correct 5 ms 1408 KB Output is correct
12 Correct 5 ms 1408 KB Output is correct
13 Correct 5 ms 1408 KB Output is correct
14 Correct 5 ms 1280 KB Output is correct
15 Correct 5 ms 1408 KB Output is correct
16 Correct 5 ms 1408 KB Output is correct
17 Correct 5 ms 1280 KB Output is correct
18 Correct 13 ms 17792 KB Output is correct
19 Correct 12 ms 17792 KB Output is correct
20 Correct 16 ms 17792 KB Output is correct
21 Correct 12 ms 17792 KB Output is correct
22 Correct 14 ms 17792 KB Output is correct
23 Correct 12 ms 17792 KB Output is correct
24 Correct 13 ms 17792 KB Output is correct
25 Correct 13 ms 17792 KB Output is correct
26 Correct 13 ms 17792 KB Output is correct
27 Correct 14 ms 17792 KB Output is correct
28 Correct 13 ms 17792 KB Output is correct
29 Correct 18 ms 17920 KB Output is correct
30 Correct 16 ms 17792 KB Output is correct
31 Correct 14 ms 17792 KB Output is correct
32 Correct 16 ms 17768 KB Output is correct
33 Correct 13 ms 17152 KB Output is correct
34 Correct 12 ms 17160 KB Output is correct
35 Correct 15 ms 16640 KB Output is correct
36 Correct 15 ms 17152 KB Output is correct
37 Correct 12 ms 16000 KB Output is correct
38 Correct 14 ms 17792 KB Output is correct
39 Correct 14 ms 17792 KB Output is correct
40 Correct 15 ms 17152 KB Output is correct
41 Correct 13 ms 17792 KB Output is correct
42 Correct 5 ms 384 KB Output is correct
43 Correct 414 ms 755620 KB Output is correct
44 Correct 406 ms 753476 KB Output is correct
45 Correct 399 ms 755576 KB Output is correct
46 Correct 404 ms 755680 KB Output is correct
47 Correct 400 ms 755576 KB Output is correct
48 Correct 416 ms 753460 KB Output is correct
49 Correct 404 ms 753400 KB Output is correct
50 Correct 402 ms 749688 KB Output is correct
51 Correct 406 ms 755576 KB Output is correct
52 Correct 417 ms 755576 KB Output is correct
53 Correct 106 ms 201848 KB Output is correct
54 Correct 185 ms 356088 KB Output is correct
55 Correct 276 ms 516044 KB Output is correct
56 Correct 388 ms 755576 KB Output is correct
57 Correct 394 ms 755832 KB Output is correct
58 Correct 429 ms 755576 KB Output is correct
59 Correct 427 ms 755720 KB Output is correct
60 Correct 413 ms 749564 KB Output is correct
61 Correct 427 ms 753436 KB Output is correct
62 Correct 390 ms 755576 KB Output is correct
63 Correct 404 ms 755576 KB Output is correct
64 Correct 415 ms 755576 KB Output is correct
65 Correct 408 ms 753400 KB Output is correct
66 Correct 421 ms 745848 KB Output is correct
67 Correct 412 ms 755576 KB Output is correct
68 Correct 428 ms 753400 KB Output is correct
69 Correct 419 ms 755576 KB Output is correct
70 Correct 420 ms 755832 KB Output is correct
71 Correct 419 ms 753400 KB Output is correct
72 Correct 389 ms 753528 KB Output is correct
73 Correct 390 ms 755576 KB Output is correct