Submission #897818

# Submission time Handle Problem Language Result Execution time Memory
897818 2024-01-03T18:12:23 Z DAleksa Chessboard (IZhO18_chessboard) C++17
Compilation error
0 ms 0 KB
#include <bits/stdc++.h>

using namespace std;

const int K = 1e5 + 10, SQ = 700;
int n, k;
int x1[K], y1[K], x2[K], y2[K];
vector<int> divs;
long long sum[SQ], P;

long long get(int x, int y, int k) {
    if(x == 0 || y == 0) {
        return 0;
    }
    int X = (x / k) * k, Y = (y / k) * k;
    long long ans = ((X / k) * 1LL * (Y / k) + 1) / 2 * k * k;
//    cout << k << "\n";
//    cout << x << " " << y << "\n";
//    cout << X << " " << Y << "\n";
//    cout << ans << "\n";
    ans += (x - X) * 1LL * k * (((Y / k) + ((X / k) % 2 == 0)) / 2);
//    cout << ans << "\n";
    ans += (y - Y) * 1LL * k * (((X / k) + ((Y / k) % 2 == 0)) / 2);
//    cout << ans << "\n";
    if((X / k + Y / k) % 2 == 0) {
        ans += (x - X) * 1LL * (y - Y);
    }
    return ans;
}

long long get(int x1, int y1, int x2, int y2, int k) {
    return get(x2, y2, k) - get(x2, y1 - 1, k) - get(x1 - 1, y2, k) + get(x1 - 1, y1 - 1, k);
}

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cin >> n >> k;
    for(int i = 0; i < k; i++) {
        cin >> x1[i] >> y1[i] >> x2[i] >> y2[i];
        P += (x2[i] - x1[i] + 1) * 1LL * (y2[i] - y1[i] + 1);
    }
    divs.push_back(1);
    for(int i = 2; i * i < n; i++) {
        if(n % i == 0) {
            divs.push_back(i);
            divs.push_back(n / i);
        }
    }
    if(n % (int)sqrt(n) == 0) {
        divs.push_back(sqrt(n));
    }
    sort(divs.begin(), divs.end());
    for(int i = 0; i < k; i++) {
        for(int d = 0; d < divs.size(); d++) {
            sum[d] += get(x1[i], y1[i], x2[i], y2[i], divs[d]);
//            cout << x1[i] << " " << y1[i] << " " << x2[i] << " " << y2[i] << " " << divs[d] << " " << get(x1[i], y1[i], x2[i], y2[i], divs[d]) << "\n";
        }
    }
    long long ans = 1e18;
//    cout << P << "\n\n";
    for(int i = 0; i < divs.size(); i++) {
        long long all = (((n / divs[i]) * 1LL * (n / divs[i]) + 1) / 2) * divs[i] * divs[i];
        ans = min(ans, all + P - 2 * sum[i]);
//        cout << i << ": " << ans << "\n";
        all = ((n / divs[i]) * 1LL * (n / divs[i]) / 2) * divs[i] * divs[i];
        ans = min(ans, all - P + 2 * sum[i]);
//        cout << i << ": " << ans << "\n";
    }
    cout << ans;
    return 0;
}
/*

6 8
3 3 3 3
1 2 1 2
3 4 3 4
5 5 5 5
4 3 4 3
4 4 4 4
2 1 2 1
3 6 3 6


4 1
4 1 4 4

*/

Compilation message

chessboard.cpp:7:16: error: 'int y1 [100010]' redeclared as different kind of entity
    7 | int x1[K], y1[K], x2[K], y2[K];
      |                ^
In file included from /usr/include/features.h:461,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/os_defines.h:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/c++config.h:518,
                 from /usr/include/c++/10/cassert:43,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:33,
                 from chessboard.cpp:1:
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:221:1: note: previous declaration 'double y1(double)'
  221 | __MATHCALL (y1,, (_Mdouble_));
      | ^~~~~~~~~~
chessboard.cpp: In function 'int main()':
chessboard.cpp:40:29: warning: pointer to a function used in arithmetic [-Wpointer-arith]
   40 |         cin >> x1[i] >> y1[i] >> x2[i] >> y2[i];
      |                             ^
chessboard.cpp:40:22: error: no match for 'operator>>' (operand types are 'std::basic_istream<char>::__istream_type' {aka 'std::basic_istream<char>'} and 'double(double) noexcept')
   40 |         cin >> x1[i] >> y1[i] >> x2[i] >> y2[i];
      |         ~~~~~~~~~~~~ ^~ ~~~~~
      |             |               |
      |             |               double(double) noexcept
      |             std::basic_istream<char>::__istream_type {aka std::basic_istream<char>}
In file included from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from chessboard.cpp:1:
/usr/include/c++/10/istream:120:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_istream<_CharT, _Traits>::__istream_type& (*)(std::basic_istream<_CharT, _Traits>::__istream_type&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]' (near match)
  120 |       operator>>(__istream_type& (*__pf)(__istream_type&))
      |       ^~~~~~~~
/usr/include/c++/10/istream:120:7: note:   conversion of argument 1 would be ill-formed:
chessboard.cpp:40:29: error: invalid conversion from 'double (*)(double) noexcept' to 'std::basic_istream<char>::__istream_type& (*)(std::basic_istream<char>::__istream_type&)' {aka 'std::basic_istream<char>& (*)(std::basic_istream<char>&)'} [-fpermissive]
   40 |         cin >> x1[i] >> y1[i] >> x2[i] >> y2[i];
      |                         ~~~~^
      |                             |
      |                             double (*)(double) noexcept
In file included from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from chessboard.cpp:1:
/usr/include/c++/10/istream:124:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_istream<_CharT, _Traits>::__ios_type& (*)(std::basic_istream<_CharT, _Traits>::__ios_type&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>; std::basic_istream<_CharT, _Traits>::__ios_type = std::basic_ios<char>]' (near match)
  124 |       operator>>(__ios_type& (*__pf)(__ios_type&))
      |       ^~~~~~~~
/usr/include/c++/10/istream:124:7: note:   conversion of argument 1 would be ill-formed:
chessboard.cpp:40:29: error: invalid conversion from 'double (*)(double) noexcept' to 'std::basic_istream<char>::__ios_type& (*)(std::basic_istream<char>::__ios_type&)' {aka 'std::basic_ios<char>& (*)(std::basic_ios<char>&)'} [-fpermissive]
   40 |         cin >> x1[i] >> y1[i] >> x2[i] >> y2[i];
      |                         ~~~~^
      |                             |
      |                             double (*)(double) noexcept
In file included from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from chessboard.cpp:1:
/usr/include/c++/10/istream:131:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(std::ios_base& (*)(std::ios_base&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]' (near match)
  131 |       operator>>(ios_base& (*__pf)(ios_base&))
      |       ^~~~~~~~
/usr/include/c++/10/istream:131:7: note:   conversion of argument 1 would be ill-formed:
chessboard.cpp:40:29: error: invalid conversion from 'double (*)(double) noexcept' to 'std::ios_base& (*)(std::ios_base&)' [-fpermissive]
   40 |         cin >> x1[i] >> y1[i] >> x2[i] >> y2[i];
      |                         ~~~~^
      |                             |
      |                             double (*)(double) noexcept
In file included from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from chessboard.cpp:1:
/usr/include/c++/10/istream:168:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(bool&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]' (near match)
  168 |       operator>>(bool& __n)
      |       ^~~~~~~~
/usr/include/c++/10/istream:168:7: note:   conversion of argument 1 would be ill-formed:
chessboard.cpp:40:29: error: cannot bind non-const lvalue reference of type 'bool&' to an rvalue of type 'bool'
   40 |         cin >> x1[i] >> y1[i] >> x2[i] >> y2[i];
      |                         ~~~~^
In file included from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from chessboard.cpp:1:
/usr/include/c++/10/istream:172:7: note: candidate: 'std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(short int&) [with _CharT = char; _Traits = std::char_traits<char>]' (near match)
  172 |       operator>>(short& __n);
      |       ^~~~~~~~
/usr/include/c++/10/istream:172:7: note:   conversion of argument 1 would be ill-formed:
chessboard.cpp:40:29: error: invalid conversion from 'double (*)(double) noexcept' to 'short int' [-fpermissive]
   40 |         cin >> x1[i] >> y1[i] >> x2[i] >> y2[i];
      |                         ~~~~^
      |                             |
      |                             double (*)(double) noexcept
chessboard.cpp:40:29: error: cannot bind rvalue '(short int)(y1 + ((sizetype)i))' to 'short int&'
In file included from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from chessboard.cpp:1:
/usr/include/c++/10/istream:175:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(short unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]' (near match)
  175 |       operator>>(unsigned short& __n)
      |       ^~~~~~~~
/usr/include/c++/10/istream:175:7: note:   conversion of argument 1 would be ill-formed:
chessboard.cpp:40:29: error: invalid conversion from 'double (*)(double) noexcept' to 'short unsigned int' [-fpermissive]
   40 |         cin >> x1[i] >> y1[i] >> x2[i] >> y2[i];
      |                         ~~~~^
      |                             |
      |                             double (*)(double) noexcept
chessboard.cpp:40:29: error: cannot bind rvalue '(short unsigned int)(y1 + ((sizetype)i))' to 'short unsigned int&'
In file included from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from chessboard.cpp:1:
/usr/include/c++/10/istream:179:7: note: candidate: 'std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(int&) [with _CharT = char; _Traits = std::char_traits<char>]' (near match)
  179 |       operator>>(int& __n);
      |       ^~~~~~~~
/usr/include/c++/10/istream:179:7: note:   conversion of argument 1 would be ill-formed:
chessboard.cpp:40:29: error: invalid conversion from 'double (*)(double) noexcept' to 'int' [-fpermissive]
   40 |         cin >> x1[i] >> y1[i] >> x2[i] >> y2[i];
      |                         ~~~~^
      |                             |
      |                             double (*)(double) noexcept
chessboard.cpp:40:29: error: cannot bind rvalue '(int)(y1 + ((sizetype)i))' to 'int&'
In file included from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from chessboard.cpp:1:
/usr/include/c++/10/istream:182:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]' (near match)
  182 |       operator>>(unsigned int& __n)
      |       ^~~~~~~~
/usr/include/c++/10/istream:182:7: note:   conversion of argument 1 would be ill-formed:
chessboard.cpp:40:29: error: invalid conversion from 'double (*)(double) noexcept' to 'unsigned int' [-fpermissive]
   40 |         cin >> x1[i] >> y1[i] >> x2[i] >> y2[i];
      |                         ~~~~^
      |                             |
      |                             double (*)(double) noexcept
chessboard.cpp:40:29: error: cannot bind rvalue '(unsigned int)(y1 + ((sizetype)i))' to 'unsigned int&'
In file included from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from chessboard.cpp:1:
/usr/include/c++/10/istream:186:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long int&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]' (near match)
  186 |       operator>>(long& __n)
      |       ^~~~~~~~
/usr/include/c++/10/istream:186:7: note:   conversion of argument 1 would be ill-formed:
chessboard.cpp:40:29: error: invalid conversion from 'double (*)(double) noexcept' to 'long int' [-fpermissive]
   40 |         cin >> x1[i] >> y1[i] >> x2[i] >> y2[i];
      |                         ~~~~^
      |                             |
      |                             double (*)(double) noexcept
chessboard.cpp:40:29: error: cannot bind rvalue '(long int)(y1 + ((sizetype)i))' to 'long int&'
In file included from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from chessboard.cpp:1:
/usr/include/c++/10/istream:190:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]' (near match)
  190 |       operator>>(unsigned long& __n)
      |       ^~~~~~~~
/usr/include/c++/10/istream:190:7: note:   conversion of argument 1 would be ill-formed:
chessboard.cpp:40:29: error: invalid conversion from 'double (*)(double) noexcept' to 'long unsigned int' [-fpermissive]
   40 |         cin >> x1[i] >> y1[i] >> x2[i] >> y2[i];
      |                         ~~~~^
      |                             |
      |                             double (*)(double) noexcept
chessboard.cpp:40:29: error: cannot bind rvalue '(long unsigned int)(y1 + ((sizetype)i))' to 'long unsigned int&'
In file included from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from chessboard.cpp:1:
/usr/include/c++/10/istream:195:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long long int&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]' (near match)
  195 |       operator>>(long long& __n)
      |       ^~~~~~~~
/usr/include/c++/10/istream:195:7: note:   conversion of argument 1 would be ill-formed:
chessboard.cpp:40:29: error: invalid conversion from 'double (*)(double) noexcept' to 'long long int' [-fpermissive]
   40 |         cin >> x1[i] >> y1[i] >> x2[i] >> y2[i];
      |                         ~~~~^
      |                             |
      |                             double (*)(double) noexcept
chessboard.cpp:40:29: error: cannot bind rvalue '(long long int)(y1 + ((sizetype)i))' to 'long long int&'
In file included from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from chessboard.cpp:1:
/usr/include/c++/10/istream:199:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long long unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]' (near match)
  199 |       operator>>(unsigned long long& __n)
      |       ^~~~~~~~
/usr/include/c++/10/istream:199:7: note:   conversion of argument 1 would be ill-formed:
chessboard.cpp:40:29: error: invalid conversion from 'double (*)(double) noexcept' to 'long long unsigned int' [-fpermissive]
   40 |         cin >> x1[i] >> y1[i] >> x2[i] >> y2[i];
      |                         ~~~~^
      |                             |
      |                             double (*)(double) noexcept
chessboard.cpp:40:29: error: cannot bind rvalue '(long long unsigned int)(y1 + ((sizetype)i))' to 'long long unsigned int&'
In file included from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from chessboard.cpp:1:
/usr/include/c++/10/istream:235:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(void*&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]' (near match)
  235 |       operator>>(void*& __p)
      |       ^~~~~~~~
/usr/include/c++/10/istream:235:7: note:   conversion of argument 1 would be ill-formed:
chessboard.cpp:40:29: error: invalid conversion from 'double (*)(double) noexcept' to 'void*' [-fpermissive]
   40 |         cin >> x1[i] >> y1[i] >> x2[i] >> y2[i];
      |                         ~~~~^
      |                             |
      |                             double (*)(double) noexcept
chessboard.cpp:40:29: error: cannot bind rvalue '(void*)(y1 + ((sizetype)i))' to 'void*&'
In file included from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from chessboard.cpp:1:
/usr/include/c++/10/istream:214:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(float&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]'
  214 |       operator>>(float& __f)
      |       ^~~~~~~~
/usr/include/c++/10/istream:214:25: note:   no known conversion for argument 1 from 'double(double) noexcept' to 'float&'
  214 |       operator>>(float& __f)
      |                  ~~~~~~~^~~
/usr/include/c++/10/istream:218:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(double&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]'
  218 |       operator>>(double& __f)
      |       ^~~~~~~~
/usr/include/c++/10/istream:218:26: note:   no known conversion for argument 1 from 'double(double) noexcept' to 'double&'
  218 |       operator>>(double& __f)
      |                  ~~~~~~~~^~~
/usr/include/c++/10/istream:222:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long double&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]'
  222 |       operator>>(long double& __f)
      |       ^~~~~~~~
/usr/include/c++/10/istream:222:31: note:   no known conversion for argument 1 from 'double(double) noexcept' to 'long double&'
  222 |       operator>>(long double& __f)
      |                  ~~~~~~~~~~~~~^~~
/usr/include/c++/10/istream:259:7: note: candidate: 'std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_istream<_CharT, _Traits>::__streambuf_type*) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__streambuf_type = std::basic_streambuf<char>]'
  259 |       operator>>(__streambuf_type* __sb);
      |       ^~~~~~~~
/usr/include/c++/10/istream:259:36: note:   no known conversion for argument 1 from '