Compilare: main.cpp: In function 'int functie2(int, int, int)': main.cpp:26:12: warning: unused variable 'n' [-Wunused-variable] int m, n = u; ^ main.cpp: In function 'int main()': main.cpp:60:19: warning: unused variable 'mij' [-Wunused-variable] int n, i , m,mij,st,dr,x,s; ^~~ main.cpp:60:23: warning: unused variable 'st' [-Wunused-variable] int n, i , m,mij,st,dr,x,s; ^~ main.cpp:60:26: warning: unused variable 'dr' [-Wunused-variable] int n, i , m,mij,st,dr,x,s; ^~