Compilare: main.cpp: In function 'void bkt(int, int)': main.cpp:37:9: warning: unused variable 'i' [-Wunused-variable] 37 | int i , j , sum = 0; | ^ main.cpp: In function 'int main()': main.cpp:70:9: warning: unused variable 'i' [-Wunused-variable] 70 | int i , l , c , sum , z , j; | ^ main.cpp:70:21: warning: unused variable 'sum' [-Wunused-variable] 70 | int i , l , c , sum , z , j; | ^~~ main.cpp:70:27: warning: unused variable 'z' [-Wunused-variable] 70 | int i , l , c , sum , z , j; | ^ main.cpp:70:31: warning: unused variable 'j' [-Wunused-variable] 70 | int i , l , c , sum , z , j; | ^