Compilare: main.cpp: In function 'int main()': main.cpp:19:12: warning: unused variable 'cont' [-Wunused-variable] { bool cont = 0 ; ^~~~ main.cpp:31:3: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(int i = 1 ; i <= Nmatrix ; i ++) ^~~ main.cpp:33:5: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' return 0; ^~~~~~