Compilare: main.cpp: In function 'int main()': main.cpp:90:16: warning: 'xs' may be used uninitialized [-Wmaybe-uninitialized] 90 | if (bfs(ys, xs, yf, xf, middle)) | ~~~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:50:13: note: 'xs' was declared here 50 | int ys, xs, yf, xf; | ^~ main.cpp:90:16: warning: 'xf' may be used uninitialized [-Wmaybe-uninitialized] 90 | if (bfs(ys, xs, yf, xf, middle)) | ~~~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:50:21: note: 'xf' was declared here 50 | int ys, xs, yf, xf; | ^~ main.cpp:90:16: warning: 'yf' may be used uninitialized [-Wmaybe-uninitialized] 90 | if (bfs(ys, xs, yf, xf, middle)) | ~~~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:50:17: note: 'yf' was declared here 50 | int ys, xs, yf, xf; | ^~ main.cpp:90:16: warning: 'ys' may be used uninitialized [-Wmaybe-uninitialized] 90 | if (bfs(ys, xs, yf, xf, middle)) | ~~~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:50:9: note: 'ys' was declared here 50 | int ys, xs, yf, xf; | ^~