Compilare: main.cpp: In function 'int main()': main.cpp:128:14: warning: 'j' may be used uninitialized in this function [-Wmaybe-uninitialized] if (mt[i][j] == mt[a][b]) { ~~~~~~~^ main.cpp:128:14: warning: 'i' may be used uninitialized in this function [-Wmaybe-uninitialized] main.cpp:27:9: warning: 'd' may be used uninitialized in this function [-Wmaybe-uninitialized] int c, d; ^ main.cpp:27:6: warning: 'c' may be used uninitialized in this function [-Wmaybe-uninitialized] int c, d; ^