Compilare: main.cpp: In function 'void cmmdc()': main.cpp:18:7: warning: this 'if' clause does not guard... [-Wmisleading-indentation] if (i + j < N) ^~ main.cpp:20:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if' gcd[i][i + j] = gcd[i][j]; ^~~ main.cpp:20:18: warning: 'i' is used uninitialized in this function [-Wuninitialized] gcd[i][i + j] = gcd[i][j]; ~~^~~ main.cpp:20:18: warning: 'j' is used uninitialized in this function [-Wuninitialized]