Compilare: main.cpp: In function 'int main()': main.cpp:27:50: warning: unused variable 'sol2' [-Wunused-variable] int n, k, i, j, num=0, nr1=0, nr2=0, sol1=0, sol2=0, delta, maxx=0, m; ^~~~ main.cpp:27:58: warning: unused variable 'delta' [-Wunused-variable] int n, k, i, j, num=0, nr1=0, nr2=0, sol1=0, sol2=0, delta, maxx=0, m; ^~~~~ main.cpp:27:65: warning: unused variable 'maxx' [-Wunused-variable] int n, k, i, j, num=0, nr1=0, nr2=0, sol1=0, sol2=0, delta, maxx=0, m; ^~~~ main.cpp:28:21: warning: unused variable 'd' [-Wunused-variable] double a, b, c, d, sol; ^