CSES - Datatähti 2015 loppu - Results
Submission details
Task:Ruudukko
Sender:PT
Submission time:2015-01-29 16:06:04
Language:C++
Status:READY
Result:100
Feedback
groupverdictscore
#1ACCEPTED17
#2ACCEPTED42
#3ACCEPTED41
Test results
testverdicttimegroup
#1ACCEPTED0.06 s1details
#2ACCEPTED0.06 s1details
#3ACCEPTED0.05 s1details
#4ACCEPTED0.06 s1details
#5ACCEPTED0.07 s1details
#6ACCEPTED0.07 s2details
#7ACCEPTED0.07 s2details
#8ACCEPTED0.07 s2details
#9ACCEPTED0.07 s2details
#10ACCEPTED0.07 s2details
#11ACCEPTED0.34 s3details
#12ACCEPTED0.36 s3details
#13ACCEPTED0.34 s3details
#14ACCEPTED0.34 s3details
#15ACCEPTED0.34 s3details

Code

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;

int n;
string m[500];
string b[500][500];
string bestCol = "";

void sett(int x, int y) {
  if(x == 0) {
    b[y][x] = b[y - 1][x] + m[y][x]; 
  }
  else if(y == 0) {
    b[y][x] = b[y][x - 1] + m[y][x];
  } else {
    b[y][x] = min(b[y - 1][x], b[y][x - 1]) + m[y][x];
  }
}

int main() {
  cin.sync_with_stdio(0);
  cin >> n;
  for(int y = 0; y < n; ++y) {
    cin >> m[y];
  }
  b[0][0] = m[0][0];
  for(int xs = 1; xs < 2 * n - 1; ++xs) {
    int d = max(0, xs - (n - 1));
    for(int ys = d; ys <= min(xs, n - 1); ++ys) {
      int x = xs - ys;
      int y = ys;
      //   cout << xs << " " << x << " " << y << "\n";
      sett(x, y);
    }
    string minStr = "";
    minStr.push_back('Z' + 1);
    for(int ys = d; ys <= min(xs, n - 1); ++ys) {
      int x = xs - ys;
      int y = ys;
      minStr = min(minStr, b[y][x]);
    }
    for(int ys = d; ys <= min(xs, n - 1); ++ys) {
      int x = xs - ys;
      int y = ys;
      if(b[y][x] > minStr) {
	b[y][x].clear();
	b[y][x].push_back('Z' + 2);
      } else {
	b[y][x].clear();
	b[y][x].push_back(m[y][x]);
      }
    }
    //  cout << "minStr: '" << minStr << "'\n";
    bestCol += minStr.back();
  }
  cout << m[0][0] << bestCol << "\n";
}

Test details

Test 1

Group: 1

Verdict: ACCEPTED

input
5
AAAAA
AAAAA
AAAAA
AAAAA
...

correct output
AAAAAAAAB

user output
AAAAAAAAB

Test 2

Group: 1

Verdict: ACCEPTED

input
5
ABABA
BABAB
ABABA
BABAB
...

correct output
ABABABABA

user output
ABABABABA

Test 3

Group: 1

Verdict: ACCEPTED

input
5
WRYIU
TWLKH
UJMJC
GRDJW
...

correct output
WRWJMDJWK

user output
WRWJMDJWK

Test 4

Group: 1

Verdict: ACCEPTED

input
5
RUEAE
ZYHHW
KDBPD
DXREW
...

correct output
RUEAEWDWX

user output
RUEAEWDWX

Test 5

Group: 1

Verdict: ACCEPTED

input
5
SRGYR
MYDOB
GNOVM
SZOZK
...

correct output
SMGNOOLTU

user output
SMGNOOLTU

Test 6

Group: 2

Verdict: ACCEPTED

input
100
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...

correct output
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...

user output
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...

Test 7

Group: 2

Verdict: ACCEPTED

input
100
ABABABABABABABABABABABABABABAB...

correct output
ABABABABABABABABABABABABABABAB...

user output
ABABABABABABABABABABABABABABAB...

Test 8

Group: 2

Verdict: ACCEPTED

input
100
FWOVNYKNMMQCNHJGUYPNEDXGVVGONC...

correct output
FWDBDECKBHKIACOVUCJGDJOHAYIBHO...

user output
FWDBDECKBHKIACOVUCJGDJOHAYIBHO...

Test 9

Group: 2

Verdict: ACCEPTED

input
100
ETGCJABWKMAAEOQXWFFYMDJBMNKMQK...

correct output
EAARGLBRLHCDHHBPABHDAJBEEBHQBE...

user output
EAARGLBRLHCDHHBPABHDAJBEEBHQBE...

Test 10

Group: 2

Verdict: ACCEPTED

input
100
GNWMLJNHSBAADUFCSGIZMWHZTVDHNR...

correct output
GEGOFRDKBNLLEUOPOEQCEFMTKANLNC...

user output
GEGOFRDKBNLLEUOPOEQCEFMTKANLNC...

Test 11

Group: 3

Verdict: ACCEPTED

input
500
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...

correct output
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...

user output
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...

Test 12

Group: 3

Verdict: ACCEPTED

input
500
ABABABABABABABABABABABABABABAB...

correct output
ABABABABABABABABABABABABABABAB...

user output
ABABABABABABABABABABABABABABAB...

Test 13

Group: 3

Verdict: ACCEPTED

input
500
HGADXTSFXYIEMDWMFIVQGHTACFUPYI...

correct output
HGADEJOGAKPJCRAHTABRSDLAVGBFAG...

user output
HGADEJOGAKPJCRAHTABRSDLAVGBFAG...

Test 14

Group: 3

Verdict: ACCEPTED

input
500
SBLNMAZESQVGWAPZYHQJMQTNGMEZWS...

correct output
SBLCAMDHILGIDRCIDUNMMAHFYCENOS...

user output
SBLCAMDHILGIDRCIDUNMMAHFYCENOS...

Test 15

Group: 3

Verdict: ACCEPTED

input
500
AOXYXRYFWPYWQDPWXQITLHQQUAYZAJ...

correct output
AOJLDOAPBGEKSGCNKBUMKAJCCWCOOD...

user output
AOJLDOAPBGEKSGCNKBUMKAJCCWCOOD...