Submission #1068739

#	Time	Username	Problem	Language	Result	Execution time	Memory
1068739		vjudge1	Naval battle (CEOI24_battle)	C++17	Compilation error	0 ms	0 KiB

Main

// Online C++ compiler to run C++ program online
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define ff first
#define ss second
struct ship{
    int x,y;
    char dir;
    
    /*
    Northern — decreases the y coordinate by 1
    Southern — increases the y coordinate by 1
    Eastern — increases the x coordinate by 1
    Western — decreases the x coordinate by 1
    */
};
int calc(ship a, ship b)
{
    
    if (a.dir == b.dir)
        return 0;    
    if (a.x == b.x)
    {
        if (a.y < b.y)
            swap(a,b);
        if (a.dir == 'N' && b.dir == 'S')
            return (a.y-b.y)/2;
        return 0;    
    }
    if (a.y == b.y)
    {
        if (a.x < b.x)
            swap(a,b);
        if (a.dir == 'W' && b.dir == 'E')
            return (a.x-b.x)/2;
        return 0;
    }
    if (a.x + a.y == b.x + b.y)
    {
       if(a.dir == 'N')
       {
           if (b.dir == 'E')
           {
               if (b.x < a.x && a.y > b.y)
                return abs(a.x-b.x);
           }
           else if (b.dir == 'W')
           {
               if (b.x > a.x && a.y > b.y)
                return abs(a.x-b.x);
           }
       }
       else if (a.dir == 'S')
       {
           if (b.dir == 'E')
           {
                 if (b.x < a.x && a.y < b.y)
                return abs(a.x-b.x);
           }
           else if (b.dir == 'W')
           {
                 if (b.x > a.x  && a.y < b.y)
                return abs(a.x-b.x);
           }
       }
       else if (a.dir == 'W')
       {
           if (b.dir == 'N')
           {
               if (b.x < a.x && a.y < b.y)
                return abs(a.x-b.x);
           }
           else if (b.dir == 'S')
           {
               if (b.x < a.x && a.y > b.y)
                return abs(a.x-b.x);
           }
       }
       else if (a.dir == 'E')
       {
          if (b.dir == 'N')
           {
               if (b.x > a.x && a.y < b.y)
                return abs(a.x-b.x);
           }
           else if (b.dir == 'S')
           {
               if (b.x > a.x && a.y > b.y)
                return abs(a.x-b.x);
           }
       }
           
    }
    return 0;
}
signed main() {
    ios::sync_with_stdio(0);
    int n;
    cin >> n;
    
    vector<ship> v(n);
    for (int i = 0; i < n; i++)
    {
        cin >> v[i].x >> v[i].y >> v[i].dir;
        
    }
    if (n>2)
    {
        cout << "n\n";
        return;
    }
    int a = v[0];
    int b = v[1];
    if (calc(a,b))
    {
        cout << "1\n2\n";
    }
    return 0;
}

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:111:9: error: return-statement with no value, in function returning 'int' [-fpermissive]
  111 |         return;
      |         ^~~~~~
Main.cpp:113:16: error: cannot convert '__gnu_cxx::__alloc_traits<std::allocator<ship>, ship>::value_type' {aka 'ship'} to 'long long int' in initialization
  113 |     int a = v[0];
      |                ^
Main.cpp:114:16: error: cannot convert '__gnu_cxx::__alloc_traits<std::allocator<ship>, ship>::value_type' {aka 'ship'} to 'long long int' in initialization
  114 |     int b = v[1];
      |                ^
Main.cpp:115:14: error: could not convert 'a' from 'long long int' to 'ship'
  115 |     if (calc(a,b))
      |              ^
      |              |
      |              long long int