1103 - Ancient Messages

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r2ro
New poster
Posts: 38
Joined: Thu Sep 25, 2008 9:26 am

1103 - Ancient Messages

Post by r2ro » Fri Jan 13, 2012 5:13 am

So there is only one user out of the 17 who attempted this problem who failed to get this problem correctly. Sadly, I'm that one user. :oops:

Could anyone please verify the output of the following test cases?

Code: Select all

6 2
00
7c
44
7c
30
00
6 25
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7f0
1e0
000
16 2
00
7e
42
7e
42
7e
42
7e
42
7e
42
7e
00
00
4a
00
16 1
0
1
2
3
4
5
6
7
8
9
a
b
c
d
e
f
9 2
00
7e
42
7e
42
7e
42
7e
00
43 2
00
7e
00
7e
42
7e
42
7e
42
7e
00
7e
42
7e
00
7e
42
7e
42
7e
00
7e
42
7e
42
7e
42
7e
42
7e
00
7e
42
7e
42
7e
42
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7e
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0000000000000001fffff000001fe000000000
0000000000000001fffff000001fe000000000
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00000000000000000000000000000000000000
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00000000000000000000000000000000000000
00000000000000000000000000000000000000
0 0
The output of my WA program.

Code: Select all

Case 1: A
Case 2: WW
Case 3: AKW
Case 4: DWWW
Case 5: AAAKKWWW
Case 6: J
Case 7: ADJKSW
Case 8: WWWWWWWWWWWWWWWWWWWW
Case 9: AKW
Case 10: AAAAA
I'm willing to post my code if it will help.

EDIT: NVM. I found my mistake and got accepted.

gang2k
New poster
Posts: 2
Joined: Tue Jan 20, 2015 10:57 am

Re: 1103 - Ancient Messages

Post by gang2k » Tue Jan 20, 2015 11:07 am

Hi r2ro,
could you share what you have changed to get AC.
I have got WA for a whole day.

I have tried your test cases, and got:

Case 1: A
Case 2: WW
Case 3: KAW
Case 4: DWWW
Case 5: WWWWWWW
Case 6: J
Case 7: WJAKSD
Case 8: WWWWWWW
Case 9: AWK
Case 10: AAAAA

could you tell me the correct answer?

brianfry713
Guru
Posts: 5947
Joined: Thu Sep 01, 2011 9:09 am
Location: San Jose, CA, USA

Re: 1103 - Ancient Messages

Post by brianfry713 » Tue Jan 20, 2015 11:18 pm

This will give you AC output:
http://www.udebug.com/UVa/1103
Check input and AC output for thousands of problems on uDebug!

gang2k
New poster
Posts: 2
Joined: Tue Jan 20, 2015 10:57 am

Re: 1103 - Ancient Messages

Post by gang2k » Wed Jan 21, 2015 7:12 am

brianfry713 wrote:This will give you AC output:
http://www.udebug.com/UVa/1103
Thanks, I finially found what was wrong and got AC.
I should read the question more carefully, it said print the codes in alphabetic order!

NAbdulla
New poster
Posts: 31
Joined: Wed Jul 30, 2014 3:40 pm
Contact:

Re: 1103 - Ancient Messages

Post by NAbdulla » Tue Jan 12, 2016 5:06 pm

Can any one help me to find the bug....
my code:

Code: Select all

#include <cstdlib>
#include <cstring>
#include <cstdio>
#include <cctype>
#include <cmath>
#include <ctime>
#include <algorithm>
#include <iostream>
#include <sstream>
#include <iomanip>
#include <bitset>
#include <vector>
#include <string>
#include <queue>
#include <stack>
#include <ios>
#include <set>
#include <map>

using namespace std;

#define PI acos(-1.0)
#define EPS 1e-9
#define INF 1 << 28
#define all(x) (x).begin(), (x).end()
#define pb(x) push_back(x)
#define ppb pop_back
#define mp(a, b) make_pair(a, b)
#define endl '\n'
#define MAX 100000
#define MOD 1000000007
#define setarray(a, b) memset(a, b, sizeof(a))

inline bool isEq(double a, double b){ return (abs(a - b) < EPS); }
inline double NegZero(double x){ if (isEq(x, -0.0))return +0.0; else return x; }

typedef long long ll;
typedef pair<int, int> pii;

#define isValid(a, b) ((a >= 0 && a < b) ? 1 : 0)
int dr[] = { 0, -1, -1, -1, 0, 1, 1, 1 };
int dc[] = { 1, 1, 0, -1, -1, -1, 0, 1 };
char hex2bin[16][5] = { "0000", "0001", "0010", "0011", "0100", "0101", "0110", "0111", "1000", "1001", "1010", "1011", "1100", "1101", "1110", "1111" };

string grid[205];
int r, c;
void fill2(int nr, int nc, char c1, char c2)//dfs1
{
    if (nr < 0 || nr >= r || nc < 0 || nc >= c || grid[nr][nc] != c1)
        return;
    grid[nr][nc] = c2;
    for (int i = 0; i < 8; i+=2){
        fill2(nr + dr[i], nc + dc[i], c1, c2);
    }
}

int component;
int holes;

void fillBlack(int nr, int nc)//dfs2
{
    if (nr < 0 || nr >= r || nc < 0 || nc >= c)
        return;

    if (grid[nr][nc] == '0'){//a hole in this component
        holes++;
        fill2(nr, nc, '0', 'h');//fill the hole with 'h'
    }
    else if (grid[nr][nc] == '1'){
        grid[nr][nc] = 'b';
        for (int i = 0; i < 8; i+=2){
            fillBlack(nr + dr[i], nc + dc[i]);
        }
    }
    else
        return;
}

int main()
{
    //freopen("in.txt", "r", stdin);
    //freopen("out.txt", "w", stdout);
    //ios_base::sync_with_stdio(false); cin.tie(NULL);

    int holesInComponent[100], cas = 1;
    string inp;
    while (cin >> r >> c){
        if (!r && !c)
            break;

        char ch;
        for (int i = 0; i < r; i++){
            grid[i] = "";
            cin >> inp;
            for (int j = 0; j < c; j++){
                ch = inp[j];
                if (isdigit(ch)){
                    grid[i] += string(hex2bin[ch - '0']);
                }
                else{
                    grid[i] += string(hex2bin[ch - 'a' + 10]);
                }
            }
        }
        c *= 4;
        bool f = 0;
        for(int i = 0; i < r && !f; i++){
            for(int j = 0; j < c; j++){
                if(grid[i][j] == '0'){
                    fill2(i, j, '0', '.');//fill the background with '.'
                    f = 1;
                    break;
                }
            }
        }

        component = 1;
        for (int i = 0; i < r; i++){
            for (int j = 0; j < c; j++){
                if (grid[i][j] == '1'){
                    holes = 0;
                    fillBlack(i, j);
                    holesInComponent[component] = holes;
                    component++;
                }
            }
        }

        string ans;
        for (int i = 1; i < component; i++){
            switch (holesInComponent[i]){
            case 0:
                ans += "W";
                break;
            case 1:
                ans += "A";
                break;
            case 2:
                ans += "K";
                break;
            case 3:
                ans += "J";
                break;
            case 4:
                ans += "S";
                break;
            case 5:
                ans += "D";
                break;
            }
        }
        sort(ans.begin(), ans.end());
        printf("Case %d: %s\n", cas++, ans.c_str());
        /*for (int i = 0; i < r; i++)
            cout << grid[i] << endl;*/
    }
    return 0;
}

touir1
New poster
Posts: 1
Joined: Thu Jul 28, 2016 2:55 am

Re: 1103 - Ancient Messages

Post by touir1 » Thu Jul 28, 2016 2:59 am

Can anyone tell me why i get a wrong answer?
even with the testcases in udebug i get AC and when i submit it tells me WA

Code: Select all

#include <bits/stdc++.h>
#define f first
#define s second

using namespace std;
const int MAX=200;

int n,m;
int M[MAX][MAX];
bool visited[MAX][MAX];
string res;
int color;

int signe[MAX][MAX];

void to_binary(int *M,char hex){
    switch(hex){
        case '0':
            M[0]=0;M[1]=0;M[2]=0;M[3]=0;break;
        case '1':
            M[0]=0;M[1]=0;M[2]=0;M[3]=1;break;
        case '2':
            M[0]=0;M[1]=0;M[2]=1;M[3]=0;break;
        case '3':
            M[0]=0;M[1]=0;M[2]=1;M[3]=1;break;
        case '4':
            M[0]=0;M[1]=1;M[2]=0;M[3]=0;break;
        case '5':
            M[0]=0;M[1]=1;M[2]=0;M[3]=1;break;
        case '6':
            M[0]=0;M[1]=1;M[2]=1;M[3]=0;break;
        case '7':
            M[0]=0;M[1]=1;M[2]=1;M[3]=1;break;
        case '8':
            M[0]=1;M[1]=0;M[2]=0;M[3]=0;break;
        case '9':
            M[0]=1;M[1]=0;M[2]=0;M[3]=1;break;
        case 'a':
            M[0]=1;M[1]=0;M[2]=1;M[3]=0;break;
        case 'b':
            M[0]=1;M[1]=0;M[2]=1;M[3]=1;break;
        case 'c':
            M[0]=1;M[1]=1;M[2]=0;M[3]=0;break;
        case 'd':
            M[0]=1;M[1]=1;M[2]=0;M[3]=1;break;
        case 'e':
            M[0]=1;M[1]=1;M[2]=1;M[3]=0;break;
        case 'f':
            M[0]=1;M[1]=1;M[2]=1;M[3]=1;break;
    }
}

int dx[4]={-1,0,1,0};
int dy[4]={0,1,0,-1};
int dxw[8]={-1,-1,0,1,1,1,0,-1};
int dyw[8]={0,1,1,1,0,-1,-1,-1};

bool go(int i,int j){
    return (i>=0 && i<n && j>=0 && j<m*4);
}

void bfs(int i,int j){
    color++;
    queue<pair<int,int> > Q;
    pair<int,int> tmp;
    memset(signe,0,sizeof signe);
    Q.push({i,j});
    visited[i][j]=true;
    signe[i][j]=1;
    while(!Q.empty()){
        tmp=Q.front();
        Q.pop();

        M[tmp.f][tmp.s]=color;
        for(int i=0;i<4;i++){
            if(go(tmp.f+dx[i],tmp.s+dy[i]) && !visited[tmp.f+dx[i]][tmp.s+dy[i]] && M[tmp.f+dx[i]][tmp.s+dy[i]]==1){
                Q.push({tmp.f+dx[i],tmp.s+dy[i]});
                visited[tmp.f+dx[i]][tmp.s+dy[i]]=true;
                signe[tmp.f+dx[i]][tmp.s+dy[i]]=1;
            }
        }
    }


    /*cout << endl << "signe:" << endl;
    for(int i=0;i<n;i++){
        for(int j=0;j<m*4;j++){
            cout << signe[i][j];
        }
        cout << endl;
    }*/

    Q=queue<pair<int,int> >();
    int couleur=1;

    for(int i=0;i<n;i++){
        for(int j=0;j<m*4;j++){
            if(signe[i][j]==0){
                couleur++;
                Q.push({i,j});
                signe[i][j]=couleur;
                while(!Q.empty()){
                    tmp=Q.front();
                    Q.pop();
                    for(int k=0;k<4;k++){
                        if(go(tmp.f+dx[k],tmp.s+dy[k]) && signe[tmp.f+dx[k]][tmp.s+dy[k]]==0){
                            Q.push({tmp.f+dx[k],tmp.s+dy[k]});
                            signe[tmp.f+dx[k]][tmp.s+dy[k]]=couleur;
                        }
                    }
                }
            }
        }
    }

    /*cout << endl << "colored:" << endl;
    for(int i=0;i<n;i++){
        for(int j=0;j<m*4;j++){
            cout << signe[i][j];
        }
        cout << endl;
    }*/

    // 1 white = W
    // 2 whites = A
    // 3 whites = K
    // 4 whites = J
    // 5 whites = S
    // 6 whites = D
    switch(couleur-1){
        case 1: res=res+'W';break;
        case 2: res=res+'A';break;
        case 3: res=res+'K';break;
        case 4: res=res+'J';break;
        case 5: res=res+'S';break;
        case 6: res=res+'D';break;
    }
    /*
    cout << "end bfs: " << res[res.length()-1] << endl;
    */
}

int main()
{
    //ofstream output("output.out");
    string tmp;
    int cc;
    int Case_t=1;
    while(true){
        cin >> n;
        cin >> m;
        if(n==0 && m==0)
            break;
        //cout << "coord: " << n << " " << m << endl;
        memset(M,0,sizeof M);
        memset(signe,0,sizeof signe);
        memset(visited,false,sizeof visited);
        color=1;

        for(int i=0;i<n;i++){
            cin >> tmp;
            cc=0;
            for(int j=0;j<tmp.length();j++){
                to_binary(M[i]+cc*4,tmp[j]);
                cc++;
            }
        }
        /*cout << endl << "matrix:" << endl;
        for(int i=0;i<n;i++){
            for(int j=0;j<m*4;j++){
                cout << M[i][j];
            }
            cout << endl;
        }*/
        //int test=1;
        res="";
        for(int i=0;i<n;i++){
            for(int j=0;j<m*4;j++){
                if(M[i][j]==1){
                    //cout << "bfs: " << test++ << endl;
                    bfs(i,j);
                }
            }
        }
        sort(res.begin(),res.end());
        //output << "Case " << Case_t << ": " << res << endl;
        cout << "Case " << Case_t++ << ": " << res << endl;
    }
    return 0;
}


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