Compilare: main.cpp: In function 'void prefix()': main.cpp:10:14: warning: unused variable 'i' [-Wunused-variable] int k=0, i; ^ main.cpp: In function 'void potrivire()': main.cpp:22:14: warning: unused variable 'i' [-Wunused-variable] int k=0, i; ^ main.cpp: In function 'int main()': main.cpp:45:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(i=n;i;i--) ^~~ main.cpp:47:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' a[0]=' '; ^ main.cpp:48:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(i=m;i;i--) ^~~ main.cpp:50:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' b[0]=' '; ^