Compilare: main.cpp: In function 'int main()': main.cpp:126:42: warning: narrowing conversion of 'lin_schimbate[1].std::vector<int>::size()' from 'std::vector<int>::size_type' {aka 'long unsigned int'} to 'int' [-Wnarrowing] 126 | int nrl[3]={-1, lin_schimbate[1].size(), lin_schimbate[2].size()}, nrc[3]={-1, col_schimbate[1].size(), col_schimbate[2].size()}; | ~~~~~~~~~~~~~~~~~~~~~^~ main.cpp:126:67: warning: narrowing conversion of 'lin_schimbate[2].std::vector<int>::size()' from 'std::vector<int>::size_type' {aka 'long unsigned int'} to 'int' [-Wnarrowing] 126 | int nrl[3]={-1, lin_schimbate[1].size(), lin_schimbate[2].size()}, nrc[3]={-1, col_schimbate[1].size(), col_schimbate[2].size()}; | ~~~~~~~~~~~~~~~~~~~~~^~ main.cpp:126:105: warning: narrowing conversion of 'col_schimbate[1].std::vector<int>::size()' from 'std::vector<int>::size_type' {aka 'long unsigned int'} to 'int' [-Wnarrowing] 126 | int nrl[3]={-1, lin_schimbate[1].size(), lin_schimbate[2].size()}, nrc[3]={-1, col_schimbate[1].size(), col_schimbate[2].size()}; | ~~~~~~~~~~~~~~~~~~~~~^~ main.cpp:126:130: warning: narrowing conversion of 'col_schimbate[2].std::vector<int>::size()' from 'std::vector<int>::size_type' {aka 'long unsigned int'} to 'int' [-Wnarrowing] 126 | int nrl[3]={-1, lin_schimbate[1].size(), lin_schimbate[2].size()}, nrc[3]={-1, col_schimbate[1].size(), col_schimbate[2].size()}; | ~~~~~~~~~~~~~~~~~~~~~^~ In file included from /usr/include/c++/12.2.1/vector:64, from main.cpp:3: In member function 'constexpr std::vector<_Tp, _Alloc>::reference std::vector<_Tp, _Alloc>::operator[](size_type) [with _Tp = int; _Alloc = std::allocator<int>]', inlined from 'int main()' at main.cpp:163:36: /usr/include/c++/12.2.1/bits/stl_vector.h:1124:32: warning: 'pmin' may be used uninitialized [-Wmaybe-uninitialized] 1124 | return *(this->_M_impl._M_start + __n); | ~~~~~~~~~~~~~~^~~~~~~~ main.cpp: In function 'int main()': main.cpp:137:9: note: 'pmin' was declared here 137 | int pmin; | ^~~~