Compilare: main.cpp: In function 'std::pair<char, std::pair<int, int> > findsol(int, int)': main.cpp:51:39: warning: operation on 'f[sus]' may be undefined [-Wsequence-point] 51 | f[sus]=f[st]=f[dr]=f[sus]=0; | ~~~~~~^~~~~~~~~~~~~~~~~~~~~ main.cpp:83:39: warning: operation on 'f[sus]' may be undefined [-Wsequence-point] 83 | f[sus]=f[st]=f[dr]=f[sus]=0; | ~~~~~~^~~~~~~~~~~~~~~~~~~~~ main.cpp:115:39: warning: operation on 'f[sus]' may be undefined [-Wsequence-point] 115 | f[sus]=f[st]=f[dr]=f[sus]=0; | ~~~~~~^~~~~~~~~~~~~~~~~~~~~ main.cpp:147:39: warning: operation on 'f[sus]' may be undefined [-Wsequence-point] 147 | f[sus]=f[st]=f[dr]=f[sus]=0; | ~~~~~~^~~~~~~~~~~~~~~~~~~~~ main.cpp:178:26: warning: 'res' may be used uninitialized [-Wmaybe-uninitialized] 178 | return {res,{x,y}}; | ^ main.cpp:42:14: note: 'res' was declared here 42 | char res; | ^~~