Compilare: main.cpp: In function 'int main()': main.cpp:67:11: warning: suggest explicit braces to avoid ambiguous 'else' [-Wdangling-else] 67 | if(v1[i].d<=x) | ^ main.cpp:20:9: warning: unused variable 'a' [-Wunused-variable] 20 | int a, b, s=0, l0, i, cl; | ^ main.cpp:20:12: warning: unused variable 'b' [-Wunused-variable] 20 | int a, b, s=0, l0, i, cl; | ^ main.cpp:32:15: warning: variable 'j' set but not used [-Wunused-but-set-variable] 32 | int k=1, j; | ^