Compilare: main.cpp: In function 'int main()': main.cpp:16:11: warning: unused variable 'r' [-Wunused-variable] 16 | int n,r=0,a=0,p=0,len=0,lenmax=-1; | ^ main.cpp:16:15: warning: unused variable 'a' [-Wunused-variable] 16 | int n,r=0,a=0,p=0,len=0,lenmax=-1; | ^ main.cpp:16:19: warning: unused variable 'p' [-Wunused-variable] 16 | int n,r=0,a=0,p=0,len=0,lenmax=-1; | ^ main.cpp:16:23: warning: unused variable 'len' [-Wunused-variable] 16 | int n,r=0,a=0,p=0,len=0,lenmax=-1; | ^~~