Submission #167768

#TimeUsernameProblemLanguageResultExecution timeMemory
167768Toirov_SadiChessboard (IZhO18_chessboard)C++17
Compilation error
0 ms0 KiB
#include <bits/stdc++.h> #define fr first #define se second using namespace std; const long long N = 1e3 + 7; const long long inf = 1e9 + 7; const long long mod = 1e9 + 7; int n; int k; int x1[N]; int y1[N]; int x2[N]; int y2[N]; int a[N][N]; int res = inf; int go(int i, int j, int x, int y){ if(i > n || j > n || i <= 0 || j <= 0){ return 0; } int cnt = 0; for(int k = i; k < i + x; k ++){ for(int h = j; h < j + x; h ++){ cnt += (a[k][h] == y); } }return cnt; } void can(int x){ int cnt = 0; int ans = 0, ans2 = 0; for(int i = 1; i <= n; i += x){ for(int j = (cnt % 2 ? 0 : x) + 1; j <= n; j += 2 * x){ ans += go(i, j, x, 0); ans += go(i, j + x * (cnt % 2 ? 1 : -1), x, 1); if(cnt % 2 == 0 && (j + 2 * x - 1) == n){ ans += go(i, j + x, x, 1); } } for(int j = (cnt % 2 ? x : 0) + 1; j <= n; j += 2 * x){ ans2 += go(i, j, x, 0); ans2 += go(i, j + x * (cnt % 2 ? -1 : 1), x, 1); if(cnt % 2 && (j + 2 * x - 1) == n){ ans2 += go(i, j + x, x, 1); } }cnt ++; } res = min({res, ans, ans2}); } int main() { /// freopen("input.txt", "r", stdin); /// freopen("output.txt", "w", stdout); ios_base::sync_with_stdio( false ); cin >> n >> k; for(int i = 1; i <= k; i ++){ cin >> x1[i] >> y1[i] >> x2[i] >> y2[i]; for(int j = x1[i]; j <= x2[i]; j ++){ for(int k = y1[i]; k <= y2[i]; k ++){ a[j][k] = 1; } } } for(int i = 1; i * i <= n; i ++){ if(n % i == 0){ can(i); if(n / i != i && (n / i) < n){ can(n / i); } } }cout << res << "\n"; }

Compilation message (stderr)

chessboard.cpp:15:9: error: 'int y1 [1007]' redeclared as different kind of symbol
 int y1[N];
         ^
In file included from /usr/include/features.h:367:0,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/os_defines.h:39,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/c++config.h:533,
                 from /usr/include/c++/7/cassert:43,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:33,
                 from chessboard.cpp:1:
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:251:1: note: previous declaration 'double y1(double)'
 __MATHCALL (y1,, (_Mdouble_));
 ^
chessboard.cpp: In function 'int main()':
chessboard.cpp:61:29: warning: pointer to a function used in arithmetic [-Wpointer-arith]
         cin >> x1[i] >> y1[i] >> x2[i] >> y2[i];
                             ^
chessboard.cpp:61:22: error: no match for 'operator>>' (operand types are 'std::basic_istream<char>::__istream_type {aka std::basic_istream<char>}' and 'double(double) noexcept')
         cin >> x1[i] >> y1[i] >> x2[i] >> y2[i];
         ~~~~~~~~~~~~~^~~~~~~~
In file included from /usr/include/c++/7/sstream:38:0,
                 from /usr/include/c++/7/complex:45,
                 from /usr/include/c++/7/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
                 from chessboard.cpp:1:
/usr/include/c++/7/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>
       operator>>(__istream_type& (*__pf)(__istream_type&))
       ^~~~~~~~
/usr/include/c++/7/istream:120:7: note:   conversion of argument 1 would be ill-formed:
chessboard.cpp:61:29: 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]
         cin >> x1[i] >> y1[i] >> x2[i] >> y2[i];
                         ~~~~^
In file included from /usr/include/c++/7/sstream:38:0,
                 from /usr/include/c++/7/complex:45,
                 from /usr/include/c++/7/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
                 from chessboard.cpp:1:
/usr/include/c++/7/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>
       operator>>(__ios_type& (*__pf)(__ios_type&))
       ^~~~~~~~
/usr/include/c++/7/istream:124:7: note:   conversion of argument 1 would be ill-formed:
chessboard.cpp:61:29: 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]
         cin >> x1[i] >> y1[i] >> x2[i] >> y2[i];
                         ~~~~^
In file included from /usr/include/c++/7/sstream:38:0,
                 from /usr/include/c++/7/complex:45,
                 from /usr/include/c++/7/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
                 from chessboard.cpp:1:
/usr/include/c++/7/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>
       operator>>(ios_base& (*__pf)(ios_base&))
       ^~~~~~~~
/usr/include/c++/7/istream:131:7: note:   conversion of argument 1 would be ill-formed:
chessboard.cpp:61:29: error: invalid conversion from 'double (*)(double) noexcept' to 'std::ios_base& (*)(std::ios_base&)' [-fpermissive]
         cin >> x1[i] >> y1[i] >> x2[i] >> y2[i];
                         ~~~~^
In file included from /usr/include/c++/7/sstream:38:0,
                 from /usr/include/c++/7/complex:45,
                 from /usr/include/c++/7/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
                 from chessboard.cpp:1:
/usr/include/c++/7/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>
       operator>>(bool& __n)
       ^~~~~~~~
/usr/include/c++/7/istream:168:7: note:   conversion of argument 1 would be ill-formed:
chessboard.cpp:61:29: error: cannot bind non-const lvalue reference of type 'bool&' to an rvalue of type 'bool'
         cin >> x1[i] >> y1[i] >> x2[i] >> y2[i];
                         ~~~~^
In file included from /usr/include/c++/7/sstream:38:0,
                 from /usr/include/c++/7/complex:45,
                 from /usr/include/c++/7/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
                 from chessboard.cpp:1:
/usr/include/c++/7/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>
       operator>>(short& __n);
       ^~~~~~~~
/usr/include/c++/7/istream:172:7: note:   conversion of argument 1 would be ill-formed:
chessboard.cpp:61:29: error: invalid conversion from 'double (*)(double) noexcept' to 'short int' [-fpermissive]
         cin >> x1[i] >> y1[i] >> x2[i] >> y2[i];
                         ~~~~^
chessboard.cpp:61:29: error: cannot bind rvalue '(short int)(y1 + ((sizetype)i))' to 'short int&'
In file included from /usr/include/c++/7/sstream:38:0,
                 from /usr/include/c++/7/complex:45,
                 from /usr/include/c++/7/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
                 from chessboard.cpp:1:
/usr/include/c++/7/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>
       operator>>(unsigned short& __n)
       ^~~~~~~~
/usr/include/c++/7/istream:175:7: note:   conversion of argument 1 would be ill-formed:
chessboard.cpp:61:29: error: invalid conversion from 'double (*)(double) noexcept' to 'short unsigned int' [-fpermissive]
         cin >> x1[i] >> y1[i] >> x2[i] >> y2[i];
                         ~~~~^
chessboard.cpp:61:29: error: cannot bind rvalue '(short unsigned int)(y1 + ((sizetype)i))' to 'short unsigned int&'
In file included from /usr/include/c++/7/sstream:38:0,
                 from /usr/include/c++/7/complex:45,
                 from /usr/include/c++/7/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
                 from chessboard.cpp:1:
/usr/include/c++/7/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>
       operator>>(int& __n);
       ^~~~~~~~
/usr/include/c++/7/istream:179:7: note:   conversion of argument 1 would be ill-formed:
chessboard.cpp:61:29: error: invalid conversion from 'double (*)(double) noexcept' to 'int' [-fpermissive]
         cin >> x1[i] >> y1[i] >> x2[i] >> y2[i];
                         ~~~~^
chessboard.cpp:61:29: error: cannot bind rvalue '(int)(y1 + ((sizetype)i))' to 'int&'
In file included from /usr/include/c++/7/sstream:38:0,
                 from /usr/include/c++/7/complex:45,
                 from /usr/include/c++/7/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
                 from chessboard.cpp:1:
/usr/include/c++/7/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>
       operator>>(unsigned int& __n)
       ^~~~~~~~
/usr/include/c++/7/istream:182:7: note:   conversion of argument 1 would be ill-formed:
chessboard.cpp:61:29: error: invalid conversion from 'double (*)(double) noexcept' to 'unsigned int' [-fpermissive]
         cin >> x1[i] >> y1[i] >> x2[i] >> y2[i];
                         ~~~~^
chessboard.cpp:61:29: error: cannot bind rvalue '(unsigned int)(y1 + ((sizetype)i))' to 'unsigned int&'
In file included from /usr/include/c++/7/sstream:38:0,
                 from /usr/include/c++/7/complex:45,
                 from /usr/include/c++/7/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
                 from chessboard.cpp:1:
/usr/include/c++/7/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>
       operator>>(long& __n)
       ^~~~~~~~
/usr/include/c++/7/istream:186:7: note:   conversion of argument 1 would be ill-formed:
chessboard.cpp:61:29: error: invalid conversion from 'double (*)(double) noexcept' to 'long int' [-fpermissive]
         cin >> x1[i] >> y1[i] >> x2[i] >> y2[i];
                         ~~~~^
chessboard.cpp:61:29: error: cannot bind rvalue '(long int)(y1 + ((sizetype)i))' to 'long int&'
In file included from /usr/include/c++/7/sstream:38:0,
                 from /usr/include/c++/7/complex:45,
                 from /usr/include/c++/7/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
                 from chessboard.cpp:1:
/usr/include/c++/7/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>
       operator>>(unsigned long& __n)
       ^~~~~~~~
/usr/include/c++/7/istream:190:7: note:   conversion of argument 1 would be ill-formed:
chessboard.cpp:61:29: error: invalid conversion from 'double (*)(double) noexcept' to 'long unsigned int' [-fpermissive]
         cin >> x1[i] >> y1[i] >> x2[i] >> y2[i];
                         ~~~~^
chessboard.cpp:61:29: error: cannot bind rvalue '(long unsigned int)(y1 + ((sizetype)i))' to 'long unsigned int&'
In file included from /usr/include/c++/7/sstream:38:0,
                 from /usr/include/c++/7/complex:45,
                 from /usr/include/c++/7/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
                 from chessboard.cpp:1:
/usr/include/c++/7/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>
       operator>>(long long& __n)
       ^~~~~~~~
/usr/include/c++/7/istream:195:7: note:   conversion of argument 1 would be ill-formed:
chessboard.cpp:61:29: error: invalid conversion from 'double (*)(double) noexcept' to 'long long int' [-fpermissive]
         cin >> x1[i] >> y1[i] >> x2[i] >> y2[i];
                         ~~~~^
chessboard.cpp:61:29: error: cannot bind rvalue '(long long int)(y1 + ((sizetype)i))' to 'long long int&'
In file included from /usr/include/c++/7/sstream:38:0,
                 from /usr/include/c++/7/complex:45,
                 from /usr/include/c++/7/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
                 from chessboard.cpp:1:
/usr/include/c++/7/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>
       operator>>(unsigned long long& __n)
       ^~~~~~~~
/usr/include/c++/7/istream:199:7: note:   conversion of argument 1 would be ill-formed:
chessboard.cpp:61:29: error: invalid conversion from 'double (*)(double) noexcept' to 'long long unsigned int' [-fpermissive]
         cin >> x1[i] >> y1[i] >> x2[i] >> y2[i];
                         ~~~~^
chessboard.cpp:61:29: error: cannot bind rvalue '(long long unsigned int)(y1 + ((sizetype)i))' to 'long long unsigned int&'
In file included from /usr/include/c++/7/sstream:38:0,
                 from /usr/include/c++/7/complex:45,
                 from /usr/include/c++/7/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
                 from chessboard.cpp:1:
/usr/include/c++/7/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>
       operator>>(void*& __p)
       ^~~~~~~~
/usr/include/c++/7/istream:235:7: note:   conversion of argument 1 would be ill-formed:
chessboard.cpp:61:29: error: invalid conversion from 'double (*)(double) noexcept' to 'void*' [-fpermissive]
         cin >> x1[i] >> y1[i] >> x2[i] >> y2[i];
                         ~~~~^
chessboard.cpp:61:29: error: cannot bind rvalue '(void*)(y1 + ((sizetype)i))' to 'void*&'
In file included from /usr/include/c++/7/sstream:38:0,
                 from /usr/include/c++/7/complex:45,
                 from /usr/include/c++/7/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
                 from chessboard.cpp:1:
/usr/include/c++/7/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>]
       operator>>(float& __f)
       ^~~~~~~~
/usr/include/c++/7/istream:214:7: note:   no known conversion for argument 1 from 'double(double) noexcept' to 'float&'
/usr/include/c++/7/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>]
       operator>>(double& __f)
       ^~~~~~~~
/usr/include/c++/7/istream:218:7: note:   no known conversion for argument 1 from 'double(double) noexcept' to 'double&'
/usr/include/c++/7/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>]
       operator>>(long double& __f)
       ^~~~~~~~
/usr/include/c++/7/istream:222:7: note:   no known conversion for argument 1 from 'double(double) noexcept' to 'long double&'
/usr/include/c++/7/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>]
       operator>>(__streambuf_type* __sb);
       ^~~~~~~~
/usr/include/c++/7/istream:259:7: note:   no known conversion for argument 1 from 'double(double) noexcept' to 'std::basic_istream<char>::__streambuf_type* {aka std::basic_streambuf<char>*}'
In file included from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:45:0,
                 from chessboard.cpp:1:
/usr/include/c++/7/cstddef:134:5: note: candidate: template<class _IntegerType> constexpr std::__byte_op_t<_IntegerType> std::operator>>(std::byte, _IntegerType)
     operator>>(byte __b, _IntegerType __shift) noexcept
     ^~~~~~~~
/usr/include/c++/7/cstddef:134:5: note:   template argument deduction/substitution failed:
chessboard.cpp:61:13: note:   cannot convert 'std::cin.std::basic_istream<char>::operator>>(x1[i])' (type 'std::basic_istream<char>::__istream_type {aka std::basic_istream<char>}') to type 'std::byte'
         cin >> x1[i] >> y1[i] >> x2[i] >> y2[i];
         ~~~~^~~~~~~~
In file included from /usr/include/c++/7/string:53:0,
                 from /usr/include/c++/7/bits/locale_classes.h:40,
                 from /usr/include/c++/7/bits/ios_base.h:41,
                 from /usr/include/c++/7/ios:42,
                 from /usr/include/c++/7/istream:38,
                 from /usr/include/c++/7/sstream:38,
                 from /usr/include/c++/7/complex:45,
                 from /usr/include/c++/7/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
                 from chessboard.cpp:1:
/usr/include/c++/7/bits/basic_string.tcc:1465:5: note: candidate: template<class _CharT, class _Traits, class _Alloc> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&)
     operator>>(basic_istream<_CharT, _Traits>& __in,
     ^~~~~~~~
/usr/include/c++/7/bits/basic_string.tcc:1465:5: note:   template argument deduction/substitution failed:
chessboard.cpp:61:29: note:   mismatched types 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>' and 'double(double) noexcept'
         cin >> x1[i] >> y1[i] >> x2[i] >> y2[i];
                             ^
In file included from /usr/include/c++/7/istream:991:0,
                 from /usr/include/c++/7/sstream:38,
                 from /usr/include/c++/7/complex:45,
                 from /usr/include/c++/7/cco