Compilare: main.cpp: In function 'int main()': main.cpp:48:9: warning: unused variable 'sum' [-Wunused-variable] int sum = 0; ^~~ main.cpp: In function 'int root(int)': main.cpp:25:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ main.cpp: In function 'long long int valoare(char)': main.cpp:111:1: warning: control reaches end of non-void function [-Wreturn-type] } ^