Compilare: main.cpp: In function 'int main()': main.cpp:96:16: warning: 'xf' may be used uninitialized [-Wmaybe-uninitialized] 96 | if (bfs(ys, xs, yf, xf, middle)) | ~~~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:54:21: note: 'xf' was declared here 54 | int ys, xs, yf, xf; | ^~ main.cpp:96:16: warning: 'yf' may be used uninitialized [-Wmaybe-uninitialized] 96 | if (bfs(ys, xs, yf, xf, middle)) | ~~~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:54:17: note: 'yf' was declared here 54 | int ys, xs, yf, xf; | ^~ main.cpp:96:16: warning: 'xs' may be used uninitialized [-Wmaybe-uninitialized] 96 | if (bfs(ys, xs, yf, xf, middle)) | ~~~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:54:13: note: 'xs' was declared here 54 | int ys, xs, yf, xf; | ^~ main.cpp:96:16: warning: 'ys' may be used uninitialized [-Wmaybe-uninitialized] 96 | if (bfs(ys, xs, yf, xf, middle)) | ~~~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:54:9: note: 'ys' was declared here 54 | int ys, xs, yf, xf; | ^~