Compilare: main.cpp: In function 'int main()': main.cpp:37:29: warning: right operand of comma operator has no effect [-Wunused-value] 37 | dr=n+1,st=0,mid,sol; | ^~~ main.cpp:37:32: warning: right operand of comma operator has no effect [-Wunused-value] 37 | dr=n+1,st=0,mid,sol; | ^