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Datatähti 2015 loppu

Start:2015-01-29 12:15:00
End:2015-01-29 17:15:00
 

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CSES - Datatähti 2015 loppu - Results
History
2015-01-29 16:06:04100
2015-01-29 16:06:03100
2015-01-29 13:06:260
2015-01-29 12:57:5359
Task:Ruudukko
Sender:PT
Submission time:2015-01-29 16:06:04
Language:C++
Status:READY
Score:100

Feedback

groupverdictscore
#1ACCEPTED17
#2ACCEPTED42
#3ACCEPTED41

Test results

testverdicttime (s)group
#1ACCEPTED0.06 / 3.001details
#2ACCEPTED0.06 / 3.001details
#3ACCEPTED0.05 / 3.001details
#4ACCEPTED0.06 / 3.001details
#5ACCEPTED0.07 / 3.001details
#6ACCEPTED0.07 / 3.002details
#7ACCEPTED0.07 / 3.002details
#8ACCEPTED0.07 / 3.002details
#9ACCEPTED0.07 / 3.002details
#10ACCEPTED0.07 / 3.002details
#11ACCEPTED0.34 / 3.003details
#12ACCEPTED0.36 / 3.003details
#13ACCEPTED0.34 / 3.003details
#14ACCEPTED0.34 / 3.003details
#15ACCEPTED0.34 / 3.003details

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
...
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correct output
AAAAAAAAB

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user output
AAAAAAAAB

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Test 2

Group: 1

Verdict: ACCEPTED

input
5
ABABA
BABAB
ABABA
BABAB
...
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correct output
ABABABABA

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user output
ABABABABA

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Test 3

Group: 1

Verdict: ACCEPTED

input
5
WRYIU
TWLKH
UJMJC
GRDJW
...
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correct output
WRWJMDJWK

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user output
WRWJMDJWK

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Test 4

Group: 1

Verdict: ACCEPTED

input
5
RUEAE
ZYHHW
KDBPD
DXREW
...
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correct output
RUEAEWDWX

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user output
RUEAEWDWX

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Test 5

Group: 1

Verdict: ACCEPTED

input
5
SRGYR
MYDOB
GNOVM
SZOZK
...
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correct output
SMGNOOLTU

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user output
SMGNOOLTU

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Test 6

Group: 2

Verdict: ACCEPTED

input
100
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...
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correct output
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...
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user output
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...
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Test 7

Group: 2

Verdict: ACCEPTED

input
100
ABABABABABABABABABABABABABABAB...
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correct output
ABABABABABABABABABABABABABABAB...
view   save

user output
ABABABABABABABABABABABABABABAB...
view   save

Test 8

Group: 2

Verdict: ACCEPTED

input
100
FWOVNYKNMMQCNHJGUYPNEDXGVVGONC...
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correct output
FWDBDECKBHKIACOVUCJGDJOHAYIBHO...
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user output
FWDBDECKBHKIACOVUCJGDJOHAYIBHO...
view   save

Test 9

Group: 2

Verdict: ACCEPTED

input
100
ETGCJABWKMAAEOQXWFFYMDJBMNKMQK...
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correct output
EAARGLBRLHCDHHBPABHDAJBEEBHQBE...
view   save

user output
EAARGLBRLHCDHHBPABHDAJBEEBHQBE...
view   save

Test 10

Group: 2

Verdict: ACCEPTED

input
100
GNWMLJNHSBAADUFCSGIZMWHZTVDHNR...
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correct output
GEGOFRDKBNLLEUOPOEQCEFMTKANLNC...
view   save

user output
GEGOFRDKBNLLEUOPOEQCEFMTKANLNC...
view   save

Test 11

Group: 3

Verdict: ACCEPTED

input
500
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...
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correct output
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...
view   save

user output
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...
view   save

Test 12

Group: 3

Verdict: ACCEPTED

input
500
ABABABABABABABABABABABABABABAB...
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correct output
ABABABABABABABABABABABABABABAB...
view   save

user output
ABABABABABABABABABABABABABABAB...
view   save

Test 13

Group: 3

Verdict: ACCEPTED

input
500
HGADXTSFXYIEMDWMFIVQGHTACFUPYI...
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correct output
HGADEJOGAKPJCRAHTABRSDLAVGBFAG...
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user output
HGADEJOGAKPJCRAHTABRSDLAVGBFAG...
view   save

Test 14

Group: 3

Verdict: ACCEPTED

input
500
SBLNMAZESQVGWAPZYHQJMQTNGMEZWS...
view   save

correct output
SBLCAMDHILGIDRCIDUNMMAHFYCENOS...
view   save

user output
SBLCAMDHILGIDRCIDUNMMAHFYCENOS...
view   save

Test 15

Group: 3

Verdict: ACCEPTED

input
500
AOXYXRYFWPYWQDPWXQITLHQQUAYZAJ...
view   save

correct output
AOJLDOAPBGEKSGCNKBUMKAJCCWCOOD...
view   save

user output
AOJLDOAPBGEKSGCNKBUMKAJCCWCOOD...
view   save