Language: C++

#include <iostream>
#include <string>
#include <algorithm>
#include <ctime>
#include <functional>
#include <vector>
#include <stack>
#include <queue>
#include <map>
#include <set>
#include <cassert>
#include <bitset>
#include <list>
#include <cstdio>
#include <stdio.h>
#include <string.h>
#define rep(i,n) for(int i=0; i< (n); i++)
typedef long long ll;
using namespace std;
const int INF = 1001001001;

int c[10][1005];

int main()
{
    cin.tie(0);
    ios::sync_with_stdio(false);

    int h, w, k;
    cin >> h >> w >> k;
    vector<string> s(h);
    int ans = INF;
    rep(i,h) cin >> c[i];
    rep(div, 1<<(h-1))
    {
        int g=0;
        vector<int> id(h);
        rep(i,h)
        {
            id[i] = g;
            if(div>>i & 1) g++;
        }
        g++;
        rep(i,g)rep(j,w) c[i][j] = 0;
        rep(i,h)rep(j,w) c[id[i]][j] += (s[i][j] - '0');
        bool ok = true;
        rep(i,g)rep(j,w) if(c[i][j] > k) ok = false;
        if(!ok) continue;

        int num = g-1;
        vector<int> now(g);
        auto add = [&](int j)
        {
            rep(i,g) now[i] += c[i][j];
            rep(i,g) if(now[i] > k) return false;
            return true;
        };

        rep(j,w)
        {
            if(!add(j))
            {
                num++;
                now = vector<int>(g);
                add(j);
            }
        }
        ans = min(ans, num);
    }
    cout << ans << endl;
    return 0;
}



Compiler output:
a.cc: In function 'int main()':
a.cc:33:18: error: no match for 'operator>>' (operand types are 'std::istream' {aka 'std::basic_istream<char>'} and 'int [1005]')
   33 |     rep(i,h) cin >> c[i];
      |              ~~~ ^~ ~~~~
      |              |         |
      |              |         int [1005]
      |              std::istream {aka std::basic_istream<char>}
In file included from /usr/include/c++/14/iostream:42,
                 from a.cc:1:
/usr/include/c++/14/istream:170:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(bool&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  170 |       operator>>(bool& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:170:7: note:   conversion of argument 1 would be ill-formed:
a.cc:33:24: error: cannot bind non-const lvalue reference of type 'bool&' to a value of type 'int*'
   33 |     rep(i,h) cin >> c[i];
      |                     ~~~^
/usr/include/c++/14/istream:174:7: 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)
  174 |       operator>>(short& __n);
      |       ^~~~~~~~
/usr/include/c++/14/istream:174:7: note:   conversion of argument 1 would be ill-formed:
a.cc:33:24: error: invalid conversion from 'int*' to 'short int' [-fpermissive]
   33 |     rep(i,h) cin >> c[i];
      |                     ~~~^
      |                        |
      |                        int*
a.cc:33:24: error: cannot bind rvalue '(short int)((int*)(& c[i]))' to 'short int&'
/usr/include/c++/14/istream:177:7: 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>; __istream_type = std::basic_istream<char>]' (near match)
  177 |       operator>>(unsigned short& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:177:7: note:   conversion of argument 1 would be ill-formed:
a.cc:33:24: error: invalid conversion from 'int*' to 'short unsigned int' [-fpermissive]
   33 |     rep(i,h) cin >> c[i];
      |                     ~~~^
      |                        |
      |                        int*
a.cc:33:24: error: cannot bind rvalue '(short unsigned int)((int*)(& c[i]))' to 'short unsigned int&'
/usr/include/c++/14/istream:181:7: note: candidate: 'std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(int&) [with _CharT = char; _Traits = std::char_traits<char>]' (near match)
  181 |       operator>>(int& __n);
      |       ^~~~~~~~
/usr/include/c++/14/istream:181:7: note:   conversion of argument 1 would be ill-formed:
a.cc:33:24: error: invalid conversion from 'int*' to 'int' [-fpermissive]
   33 |     rep(i,h) cin >> c[i];
      |                     ~~~^
      |                        |
      |                        int*
a.cc:33:24: error: cannot bind rvalue '(int)((int*)(& c[i]))' to 'int&'
/usr/include/c++/14/istream:184:7: 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>; __istream_type = std::basic_istream<char>]' (near match)
  184 |       operator>>(unsigned int& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:184:7: note:   conversion of argument 1 would be ill-formed:
a.cc:33:24: error: invalid conversion from 'int*' to 'unsigned int' [-fpermissive]
   33 |     rep(i,h) cin >> c[i];
      |                     ~~~^
      |                        |
      |                        int*
a.cc:33:24: error: cannot bind rvalue '(unsigned int)((int*)(& c[i]))' to 'unsigned int&'
/usr/include/c++/14/istream:188:7: 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>; __istream_type = std::basic_istream<char>]' (near match)
  188 |       operator>>(long& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:188:7: note:   conversion of argument 1 would be ill-formed:
a.cc:33:24: error: invalid conversion from 'int*' to 'long int' [-fpermissive]
   33 |     rep(i,h) cin >> c[i];
      |                     ~~~^
      |                        |
      |                        int*
a.cc:33:24: error: cannot bind rvalue '(long int)((int*)(& c[i]))' to 'long int&'
/usr/include/c++/14/istream:192:7: 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>; __istream_type = std::basic_istream<char>]' (near match)
  192 |       operator>>(unsigned long& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:192:7: note:   conversion of argument 1 would be ill-formed:
a.cc:33:24: error: invalid conversion from 'int*' to 'long unsigned int' [-fpermissive]
   33 |     rep(i,h) cin >> c[i];
      |                     ~~~^
      |                        |
      |                        int*
a.cc:33:24: error: cannot bind rvalue '(long unsigned int)((int*)(& c[i]))' to 'long unsigned int&'
/usr/include/c++/14/istream:199:7: 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>; __istream_type = std::basic_istream<char>]' (near match)
  199 |       operator>>(long long& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:199:7: note:   conversion of argument 1 would be ill-formed:
a.cc:33:24: error: invalid conversion from 'int*' to 'long long int' [-fpermissive]
   33 |     rep(i,h) cin >> c[i];
      |                     ~~~^
      |                        |
      |                        int*
a.cc:33:24: error: cannot bind rvalue '(long long int)((int*)(& c[i]))' to 'long long int&'
/usr/include/c++/14/istream:203:7: 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>; __istream_type = std::basic_istream<char>]' (near match)
  203 |       operator>>(unsigned long long& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:203:7: note:   conversion of argument 1 would be ill-formed:
a.cc:33:24: error: invalid conversion from 'int*' to 'long long unsigned int' [-fpermissive]
   33 |     rep(i,h) cin >> c[i];
      |                     ~~~^
      |                        |
      |                        int*
a.cc:33:24: error: cannot bind rvalue '(long long unsigned int)((int*)(& c[i]))' to 'long long unsigned int&'
/usr/include/c++/14/istream:328:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(void*&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  328 |       operator>>(void*& __p)
      |       ^~~~~~~~
/usr/include/c++/14/istream:328:7: note:   conversion of argument 1 would be ill-formed:
a.cc:33:24: error: cannot bind non-const lvalue reference of type 'void*&' to an rvalue of type 'void*'
   33 |     rep(i,h) cin >> c[i];
      |                     ~~~^
/usr/include/c++/14/istream:219:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(float&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]'
  219 |       operator>>(float& __f)
      |       ^~~~~~~~
/usr/include/c++/14/istream:219:25: note:   no known conversion for argument 1 from 'int [1005]' to 'float&'
  219 |       operator>>(float& __f)
      |                  ~~~~~~~^~~
/usr/include/c++/14/istream:223:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(double&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]'
  223 |       operator>>(double& __f)
      |       ^~~~~~~~
/usr/include/c++/14/istream:223:26: note:   no known conversion for argument 1 from 'int [1005]' to 'double&'
  223 |       operator>>(double& __f)
      |                  ~~~~~~~~^~~
/usr/include/c++/14/istream:227:7: 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>; __istream_type = std::basic_istream<char>]'
  227 |       operator>>(long double& __f)
      |       ^~~~~~~~
/usr/include/c++/14/istream:227:31: note:   no known conversion for argument 1 from 'int [1005]' to 'long double&'
  227 |       operator>>(long double& __f)
      |                  ~~~~~~~~~~~~~^~~
/usr/include/c++/14/istream:122:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(__istream_type& (*)(__istream_type&)) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]'
  122 |       operator>>(__istream_type& (*__pf)(__istream_type&))
      |       ^~~~~~~~
/usr/include/c++/14/istream:122:36: note:   no known conversion for argument 1 from 'int [1005]' to 'std::basic_istream<char>::__istream_type& (*)(std::basic_istream<char>::__istream_type&)' {aka 'std::basic_istream<char>& (*)(std::basic_istream<char>&)'}
  122 |       operator>>(__istream_type& (*__pf)(__istream_type&))
      |                  ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/istream:126:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(__ios_type& (*)(__ios_type&)) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>; __ios_type = std::basic_ios<char>]'
  126 |       operator>>(__ios_type& (*__pf)(__ios_type&))
      |       ^~~~~~~~
/usr/include/c++/14/istream:126:3