Eroare de compilare: main.cpp: In member function 'int bigint::sumof()': main.cpp:48:9: error: found ':' in nested-name-specifier, expected '::' for(c : s) ans += c - '0'; ^ main.cpp:48:7: error: 'c' has not been declared for(c : s) ans += c - '0'; ^ main.cpp:49:3: error: expected primary-expression before 'return' return ans; ^~~~~~ main.cpp:49:3: error: expected ';' before 'return' main.cpp:49:3: error: expected primary-expression before 'return' main.cpp:49:3: error: expected ')' before 'return' Non zero exit status: 1