Compilare: main.cpp: In function 'int main()': main.cpp:16:22: warning: 'M' is used uninitialized [-Wuninitialized] 16 | for(int i = 0; i < M; i++){ | ~~^~~ main.cpp:15:9: note: 'M' was declared here 15 | int M, N; | ^ main.cpp:21:22: warning: 'N' may be used uninitialized [-Wmaybe-uninitialized] 21 | for(int i = 0; i < N; i++){ | ~~^~~ main.cpp:15:12: note: 'N' was declared here 15 | int M, N; | ^