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