I thought index reaching end may be a problem but that can never happen can it?,
TLE may be ok but why RTE???

It is because of too many recursion i presume trying to find a work around...

But you used Python. Get used to it.

Thanks a lot!

Try with this:
2147000000 -2147000000
Output should be:
0

Check various test cases like
+ve -ve
+ve +ve
0 -ve
0 0
and check this tutorial http://www.techcrashcourse.com/2015/05/c-programming-arithmetic-operators.html

try zero

i have WA#4 and this test help me:
input:
2 5 4
1 2
4 2

output:
1 1 3

GOOD LUCK!!!

#include <iostream>
#include <string>
#include <cmath>


int32_t get_post_case_offset(const std::string& receiver)
{
    uint32_t out = 0;
    switch (receiver[0]){
        case 'A':
        case 'P':
        case 'O':
        case 'R':
            out = 0;
            break;

        case 'B':
        case 'M':
        case 'S':
            out = 1;
            break;

        default:
            out = 2;
    }

    return out;
}

std::string get_receiver(){
    std::string out;
    std::cin >> out;
    return std::move(out);
}

int main()
{
    uint32_t n;
    std::cin >> n;

    uint32_t steps = 0;
    int32_t last_offset = 0;

    for (;n;n--){
        int32_t offset = get_post_case_offset(get_receiver());
        steps += abs(last_offset - offset);
        last_offset = offset;
    }

    std::cout << steps << std::endl;

   return 0;
}

Thanks! I was confused about this before seeing your post.

You lie. In problem segment is [ai, bi].

Ошибка где-то тут:




string line;
bool check(int s,int e)
{
    string temp;
    for(int i=s; i<=e; i++)
        temp.push_back(line[i]);
    string temp2=temp;
    reverse(temp.begin(),temp.end());
    if(temp==temp2)
        return true;
    return false;
}
int dp[4005][4005];
int palindrome(int s,int e)
{
    if(s>=e)
        return 0;
    if(dp[s][e]!=-1)
        return dp[s][e];
    int ans=(1<<30);
    for(int i=s; i<e; i++)
        if(check(s,i))
        {
            ans=min(ans,1+palindrome(i+1,e));

        }
    return dp[s][e]=ans;
}
vector<string>anss;
void print(int s,int e)
{
    int b=palindrome(s,e);
    if(b==1)
    {
        string temp;
        for(int i=s; i<e; i++)
            temp.push_back(line[i]);
            anss.push_back(temp);

        return;
    }
    for(int i=s; i<e; i++)
        if(b==1+palindrome(i+1,e))
        {
             string temp;
           for(int j=s;j<=i;j++)
             temp.push_back(line[j]);
            anss.push_back(temp);

           print(i+1,e);
           break;
        }

}
int main()
{
    cin>>line;
    int len;
    len=line.size();
    anss.clear();
    memset(dp,-1,sizeof dp);
    cout<<palindrome(0,len)<<endl;
    print(0,len);
    len=anss.size();
    for(int i=0;i<len-1;i++)
        cout<<anss[i]<<" ";
    cout<<anss[len-1]<<"\n";



}

Edited by author 22.08.2018 12:26

Edited by author 22.08.2018 12:26

I had WA #1 as I printed loops. In other words, if my program had to output a path of length K it would print
1 1
1 2
2 2
2 3
...
(K - 1) (K - 1)
(K - 1) K

Having deleted them, I secured my AC :P

i don't think it's only about IO. i suppose they used not linked list (or just list in c++), but array with 2 iterators + didn't copy the data when there are already more then n - #of_moves elements in array/list

def prime(n):
    for i in range(2, n):
        if n % i == 0:
            return False
    return True

k = int(input())
for i in range(k):
    n = int(input())
    count = 0
    for f in range(2, 100):
        if prime(f) == True:
            count += 1
        if count == n:
            break
    print(f)


I have same problem

I haven't solved this problem yet. The table that you see right after "The frame consists of the following characters:" statement tells you how you should read these special characters.

I tried to generate the sample input, but not sure if it is correct since these are unprintable characters (atleast with my local PC encoding) and I cannot really verify it.

Nevertheless, here is my attempt to generate it. It looks rugged, but that is because of encoding issues. You should probably output it on your own PC with the program below.


..................................................
..................................................
..................................................
..................................................
..................................................
..................................................
...........ÚÄÄÄÄÄ¿................................
...........³.....³................................
....ÚÄÄÄÄÄij.....³..........ÚÄ¿...................
....³......³.....³..........³.³...................
....³......³.....³..........ÀÄÙ...................
....³......³....Ú³ÄÄÄÄ¿.............ÚÄ¿...........
....³......ÀÄÄÄÄÄÙ....³.............³.³...........
....³......³....³.....³.............ÀÄÙ...........
....³......³....³.....³.........ÚÄÄ¿..............
....ÀÄÄÄÄÄÄÙ....³.....³.........³..³..............
................³.....³.........³..³..............
................ÀÄÄÄÄÄÙ.........ÀÄÄÙ..............
..................................................
..................................................


and the program that output it. It reads squares as in output sample and draws a board.


struct square {
  int x, y, a;
  square() = default;
  square(int x, int y, int a) : x(x), y(y), a(a) {}
};

void solve(std::istream &in, std::ostream &out) {
  std::vector<square> squares;
  int n;
  in >> n;
  for (int i = 0; i < n; ++i) {
    int x, y, a;
    in >> x >> y >> a;
    squares.emplace_back(x, y, a);
  }
  unsigned char board[20][50];
  for (int i = 0; i < 20; ++i) {
    for (int j = 0; j < 50; ++j) {
      board[i][j] = '.';
    }
  }
  for (square sq : squares) {
    board[sq.y][sq.x] = 218; // top-left
    board[sq.y][sq.x + sq.a - 1] = 191; // top-right
    board[sq.y + sq.a - 1][sq.x] = 192; // bottom-left
    board[sq.y + sq.a - 1][sq.x + sq.a - 1] = 217; // bottom-right
    for (int x = sq.x + 1; x < sq.x + sq.a - 1; ++x) {
      board[sq.y][x] = 196; // top edge
      board[sq.y + sq.a - 1][x] = 196; // bottom edge
    }
    for (int y = sq.y + 1; y < sq.y + sq.a - 1; ++y) {
      board[y][sq.x] = 179; // left edge
      board[y][sq.x + sq.a - 1] = 179; // right edge
    }
  }
  for (int i = 0; i < 20; ++i) {
    for (int j = 0; j < 50; ++j) {
      out << board[i][j];
    }
    out << '\n';
  }
}


int main() {
  solve(std::cin, std::cout);
}


As for reading it. I think you used char, while you need unsigned char or int for this problem. You can use getchar() that returns int or read into unsigned char s[SIZE]


Edited by author 20.08.2018 20:13

Edited by author 20.08.2018 20:13

Edited by author 20.08.2018 20:13

Edited by author 20.08.2018 20:19

Edited by author 20.08.2018 20:26

Edited by author 20.08.2018 20:34

As the frame defined by the tripple (X, Y, A) will have such vertices:
(X, Y)
(X, Y + A - 1)
(X + A - 1, Y)
(X + A - 1, Y + A - 1)