Compilare: In file included from /usr/include/c++/12.2.1/bits/stl_algobase.h:64, from /usr/include/c++/12.2.1/string:50, from /usr/include/c++/12.2.1/bits/locale_classes.h:40, from /usr/include/c++/12.2.1/bits/ios_base.h:41, from /usr/include/c++/12.2.1/ios:42, from /usr/include/c++/12.2.1/istream:38, from /usr/include/c++/12.2.1/fstream:38, from main.cpp:1: In constructor 'constexpr std::pair<_T1, _T2>::pair(const _T1&, const _T2&) requires _S_constructible<const _T1&, const _T2&>() [with _T1 = int; _T2 = std::pair<int, int>]', inlined from 'int main()' at main.cpp:72:12: /usr/include/c++/12.2.1/bits/stl_pair.h:272:9: warning: 'sy' may be used uninitialized [-Wmaybe-uninitialized] 272 | : first(__x), second(__y) | ^~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:24:32: note: 'sy' was declared here 24 | int n, m, x, y, cnt=0, sx, sy, fx, fy, nx, ny, mn=2100000000; | ^~ main.cpp:24:28: warning: 'sx' may be used uninitialized [-Wmaybe-uninitialized] 24 | int n, m, x, y, cnt=0, sx, sy, fx, fy, nx, ny, mn=2100000000; | ^~ main.cpp:80:22: warning: 'fy' may be used uninitialized [-Wmaybe-uninitialized] 80 | if(x==fx && y==fy) | ~^~~~ main.cpp:24:40: note: 'fy' was declared here 24 | int n, m, x, y, cnt=0, sx, sy, fx, fy, nx, ny, mn=2100000000; | ^~ main.cpp:80:13: warning: 'fx' may be used uninitialized [-Wmaybe-uninitialized] 80 | if(x==fx && y==fy) | ~^~~~ main.cpp:24:36: note: 'fx' was declared here 24 | int n, m, x, y, cnt=0, sx, sy, fx, fy, nx, ny, mn=2100000000; | ^~