CSES - Putka Open 2020 – 4/5

CSES - Putka Open 2020 – 4/5 - Results

Submission details
Task:	Ruudukko
Sender:	ArktinenKarpalo
Submission time:	2020-11-07 22:13:56 +0200
Language:	C++ (C++17)
Status:	READY
Result:	17

Feedback
group	verdict	score
#1	ACCEPTED	5
#2	ACCEPTED	12
#3	WRONG ANSWER	0
#4	WRONG ANSWER	0
#5	WRONG ANSWER	0

Test results
test	verdict	time	group
#1	ACCEPTED	0.01 s	1, 5	details
#2	ACCEPTED	0.01 s	2, 5	details
#3	WRONG ANSWER	0.01 s	3, 5	details
#4	WRONG ANSWER	0.01 s	4, 5	details
#5	WRONG ANSWER	0.01 s	5	details
#6	WRONG ANSWER	0.01 s	5	details
#7	ACCEPTED	0.01 s	2, 5	details
#8	ACCEPTED	0.01 s	2, 5	details
#9	WRONG ANSWER	0.01 s	3, 5	details
#10	WRONG ANSWER	0.01 s	3, 5	details
#11	WRONG ANSWER	0.01 s	3, 5	details
#12	WRONG ANSWER	0.01 s	3, 5	details
#13	WRONG ANSWER	0.01 s	4, 5	details
#14	WRONG ANSWER	0.01 s	5	details
#15	WRONG ANSWER	0.01 s	3, 5	details
#16	WRONG ANSWER	0.01 s	5	details

Compiler report

input/code.cpp: In function 'bool test(int, int)':
input/code.cpp:31:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   if(rte.size() == n*m) {
      ~~~~~~~~~~~^~~~~~
input/code.cpp: In function 'int main()':
input/code.cpp:168:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   if(ans.size() == n*m-1) {
      ~~~~~~~~~~~^~~~~~~~

Code

#include <bits/stdc++.h>
#define ll long long
#define ld long double
#define M 1000000007
 
using namespace std;
 
int n, m, sx, sy, gx, gy;
 
stack<char> rte;
bitset<64> vis[55];
 
bool chk(int x, int y) {
	if(x == 0 || y == 0 || x > m || y > n)
		return false;
	if(vis[y][x])
		return false;
	return true;
}
 
vector<pair<char,pair<int,int>>> v= {
	{'R', {1, 0}},
	{'L', {-1, 0}},
	{'D', {0, 1}},
	{'U', {0, -1}}
};
 
ll cnt = 0;
bool test(int x, int y) {
	if(x == gx && y == gy) {
		if(rte.size() == n*m) {
			vector<char> ans;
			while(rte.size() > 1) {
				ans.push_back(rte.top());
				rte.pop();
			}
			cout << "YES\n";
			reverse(ans.begin(), ans.end());
			for(auto u:ans)
				cout <<u;
			cout<<"\n";
			return true;
		}
		return false;
	}
	for(auto u:v) {
		int xx = x+u.second.first;
		int yy = y+u.second.second;
		if(chk(xx, yy)) {
			rte.push(u.first);
			vis[yy][xx] = 1;
			if(test(xx, yy))
				return true;
			vis[yy][xx] = 0;
			rte.pop();
		}
	}
	return false;
}
 
int main() {
	cin.tie(0);
	cout.tie(0);
	ios_base::sync_with_stdio();
	int t;
	cin >> t;
	for(int g=0; g<t; g++) {
		cin >> n >> m >> sy >> sx >> gy >> gx;
		if(false) {
			rte.push('S');
			vis[sy][sx] = true;
			if(!test(sx, sy))
				cout << "NO\n";
			while(!rte.empty())
				rte.pop();
			for(int i=1; i<=50; i++)
				for(int j=1; j<=50; j++) {
					vis[i][j] = 0;
				}
			continue;
		}
		bool swx = false;
		bool swy = false;
		if(sx > gx) {
			swx = true;
			swap(sx, gx);
		}
		if(sy > gy || (n == 2 && sy == 2)) {
			swy = true;
			swap(sy, gy);
		}
		vector<char> ans;
		if(n == 1) {
			if(sx == 1 && gx == m) {
				for(int i=1; i<m; i++)
					ans.push_back('R');
			} else if(sx == m && gx == 1) {
				for(int i=1; i<m; i++)
					ans.push_back('L');
			} else {
			}
		
		} else if(n == 2) {
			if(sy == gy) {
				if((gx-sx)%2 == 1) {
					for(int i=1; i<sx; i++) {
						ans.push_back('L');
					}
					ans.push_back('D');
					for(int i=1; i<sx; i++) {
						ans.push_back('R');
					}
					for(int i=sx; i+2<=gx; i+=2) {
						ans.push_back('R');
						ans.push_back('U');
						ans.push_back('R');
						ans.push_back('D');
					}
					ans.push_back('R');
					for(int i=gx; i<m; i++)
						ans.push_back('R');
					ans.push_back('U');
					for(int i=gx; i<m; i++)
						ans.push_back('L');
				}
 
			} else {
				if((gx-sx)%2 == 0) {
					for(int i=1; i<sx; i++) {
						ans.push_back('L');
					}
					bool k = false;
					if(gx != sx || ans.size() > 0) {
						ans.push_back('D');
						k = true;
					}
					for(int i=1; i<sx; i++) {
						ans.push_back('R');
					}
					for(int i=sx; i<gx; i+=2) {
						if(i > sx)
							ans.push_back('D');
						ans.push_back('R');
						ans.push_back('U');
						ans.push_back('R');
					}
					for(int i=gx; i<m; i++)
						ans.push_back('R');
					if(gx != sx || !k)
					ans.push_back('D');
					for(int i=gx; i<m; i++)
						ans.push_back('L');
				}
				if(gx == sx) {
					if(gx != 1 && gx != m)
						ans.clear();
				}
				if((gx-sx) == 1)
					ans.clear();
			}
		} else if(n == 3) {
			return 0;
		} else if(n == 4) {
			return 0;
		} else {
			return 0;
		}
		if(ans.size() == n*m-1) {
			if(swx) {
				reverse(ans.begin(), ans.end());
				if(gy == sy)
					swy = !swy;
			}
			cout <<"YES\n";
			for(auto u:ans) {
				if(u == 'R') {
					if(swx)
						cout << "L";
					else
						cout << "R";
				} else if(u == 'L') {
					if(!swx)
						cout << "L";
					else
						cout << "R";
				} else if(u == 'U') {
					if(swy)
						cout << "D";
					else
						cout << "U";
				
				} else if(u == 'D') {
					if(!swy)
						cout << "D";
					else
						cout << "U";
				}
			}
			cout << "\n";
		} else {
			cout << "NO\n";
		}
	}
}

Test details

Test 1

Group: 1, 5

Verdict: ACCEPTED

input
`100 1 45 1 45 1 1 1 18 1 1 1 10 1 47 1 17 1 30 1 33 1 28 1 20 ...` view save

correct output
`YES LLLLLLLLLLLLLLLLLLLLLLLLLLLLLL...` view save

user output
`YES LLLLLLLLLLLLLLLLLLLLLLLLLLLLLL...` Truncated

Test 2

Group: 2, 5

Verdict: ACCEPTED

input
`100 2 43 1 33 1 21 2 2 1 1 2 2 2 32 1 1 2 8 2 14 1 12 1 14 ...` view save

correct output
`NO NO NO NO YES ...` view save

user output
`NO NO NO NO YES ...` Truncated

Test 3

Group: 3, 5

Verdict: WRONG ANSWER

input
`100 3 4 2 1 2 4 3 38 2 24 1 22 3 29 2 23 2 3 3 8 3 1 1 2 ...` view save

correct output
`NO NO NO YES RRRRRRRUULDLULDLULDLLUR ...` view save

user output
(empty)

Test 4

Group: 4, 5

Verdict: WRONG ANSWER

input
`100 4 25 2 19 1 5 4 13 3 10 4 12 4 7 3 1 4 2 4 23 1 19 2 5 ...` view save

correct output
`YES DDRRRRRRULLLLLURRRRRULLLLLLLDD...` view save

user output
(empty)

Test 5

Group: 5

Verdict: WRONG ANSWER

input
`100 16 8 13 1 14 8 41 21 19 11 32 12 46 17 13 7 6 11 8 41 4 32 4 12 ...` view save

correct output
`NO YES LURULURULURULURULURRDDDDDDDDDR...` view save

user output
(empty)

Test 6

Group: 5

Verdict: WRONG ANSWER

input
`100 31 38 18 35 31 37 35 48 7 13 21 21 46 21 25 2 4 19 35 2 13 2 35 1 ...` view save

correct output
`YES LLLLLLLLLLLLDRRRRRRRRRRRRDLLLL...` view save

user output
(empty)

Test 7

Group: 2, 5

Verdict: ACCEPTED

input
`100 2 4 1 3 1 4 2 4 2 2 1 1 2 4 2 3 1 2 2 4 2 3 1 4 ...` view save

correct output
`YES LLDRRRU NO NO NO ...` view save

user output
`YES LLDRRRU NO NO NO ...` Truncated

Test 8

Group: 2, 5

Verdict: ACCEPTED

input
`100 2 5 1 2 2 4 2 5 1 2 1 1 2 5 2 1 1 2 2 5 1 1 1 5 ...` view save

correct output
`YES LDRRURRDL YES RRRDLLLLU NO ...` view save

user output
`YES LDRRURRDL YES RRRDLLLLU NO ...` Truncated

Test 9

Group: 3, 5

Verdict: WRONG ANSWER

input
`100 3 4 1 1 2 3 3 4 2 4 3 2 3 4 2 1 3 1 3 4 1 4 3 4 ...` view save

correct output
`YES DDRRRUULLDR NO YES URRRDDLULDL ...` view save

user output
(empty)

Test 10

Group: 3, 5

Verdict: WRONG ANSWER

input
`100 3 5 3 4 3 2 3 5 3 5 2 3 3 5 3 1 2 2 3 5 3 1 3 2 ...` view save

correct output
`NO NO YES UURRRRDDLULDLU NO ...` view save

user output
(empty)

Test 11

Group: 3, 5

Verdict: WRONG ANSWER

input
`100 3 8 2 8 1 2 3 8 2 4 1 7 3 8 3 4 2 7 3 8 2 5 3 1 ...` view save

correct output
`NO NO NO YES LLLDRRRRURDRUULLLLLLLDD ...` view save

user output
(empty)

Test 12

Group: 3, 5

Verdict: WRONG ANSWER

input
`100 3 9 1 3 2 9 3 9 1 6 1 5 3 9 3 6 2 8 3 9 3 2 3 4 ...` view save

correct output
`NO NO NO NO NO ...` view save

user output
(empty)

Test 13

Group: 4, 5

Verdict: WRONG ANSWER

input
`100 4 4 2 2 1 4 4 4 4 1 2 2 4 4 2 1 4 3 4 4 3 1 3 3 ...` view save

correct output
`YES DDLUUURRDDDRUUU YES UUURRRDLDRDLLUU NO ...` view save

user output
(empty)

Test 14

Group: 5

Verdict: WRONG ANSWER

input
`100 12 27 6 22 1 8 6 25 3 2 4 4 6 16 4 6 5 2 36 33 8 6 1 6 ...` view save

correct output
`YES DLDDDDDRUUUURDDDDRUURDDRRULURU...` view save

user output
(empty)

Test 15

Group: 3, 5

Verdict: WRONG ANSWER

input
`100 3 12 3 5 1 4 3 20 3 19 2 19 3 34 3 9 2 9 3 38 2 15 3 15 ...` view save

correct output
`YES RRRRRRRUULDLULDLULDLULDLDLULDL...` view save

user output
(empty)

Test 16

Group: 5

Verdict: WRONG ANSWER

input
`100 50 50 29 1 16 21 50 50 37 5 23 48 50 50 32 22 45 24 50 50 6 28 12 37 ...` view save

correct output
`YES DDDDDDDDDDDDDDDDDDDDDRUUUUUUUU...` view save

user output
(empty)

Putka Open 2020 – 4/5

Ruudukko

Compiler report

Code

Test details

Test 1

Test 2

Test 3

Test 4

Test 5

Test 6

Test 7

Test 8

Test 9

Test 10

Test 11

Test 12

Test 13

Test 14

Test 15

Test 16

Tasks

Submissions (ArktinenKarpalo)