Compilare: main.cpp: In function 'int main()': main.cpp:36:12: warning: right operand of comma operator has no effect [-Wunused-value] in>>n,p; ^ main.cpp:21:5: warning: 'p' is used uninitialized in this function [-Wuninitialized] if (exp==0) ^~ main.cpp:35:16: note: 'p' was declared here long int n,p; ^