Compilare: main.cpp: In function 'int main()': main.cpp:91:16: warning: 'xs' may be used uninitialized [-Wmaybe-uninitialized] 91 | if (bfs(ys, xs, yf, xf, middle)) | ~~~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:51:13: note: 'xs' was declared here 51 | int ys, xs, yf, xf; | ^~ main.cpp:91:16: warning: 'xf' may be used uninitialized [-Wmaybe-uninitialized] 91 | if (bfs(ys, xs, yf, xf, middle)) | ~~~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:51:21: note: 'xf' was declared here 51 | int ys, xs, yf, xf; | ^~ main.cpp:91:16: warning: 'yf' may be used uninitialized [-Wmaybe-uninitialized] 91 | if (bfs(ys, xs, yf, xf, middle)) | ~~~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:51:17: note: 'yf' was declared here 51 | int ys, xs, yf, xf; | ^~ main.cpp:91:16: warning: 'ys' may be used uninitialized [-Wmaybe-uninitialized] 91 | if (bfs(ys, xs, yf, xf, middle)) | ~~~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:51:9: note: 'ys' was declared here 51 | int ys, xs, yf, xf; | ^~