Compilare: main.cpp: In function 'void Euler(int)': main.cpp:22:7: warning: unused variable 'i' [-Wunused-variable] { int i,k,nod,nod2; ^ main.cpp: In function 'int main()': main.cpp:52:4: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(i=1;i<=nsol;i++) ^~~ main.cpp:54:5: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' return 0; ^~~~~~