operatii1.cpp: In function `void verificare()': operatii1.cpp:41: `x' undeclared (first use this function) operatii1.cpp:41: (Each undeclared identifier is reported only once for each function it appears in.) operatii1.cpp:43: `y' undeclared (first use this function) operatii1.cpp:45: request for member `erase' in `s', which is of non-aggregate type `std::string[20]' operatii1.cpp:56: request for member `erase' in `s', which is of non-aggregate type `std::string[20]' operatii1.cpp:61: request for member `length' in `s', which is of non-aggregate type `std::string[20]' operatii1.cpp:70: request for member `erase' in `s', which is of non-aggregate type `std::string[20]' operatii1.cpp:80: request for member `erase' in `s', which is of non-aggregate type `std::string[20]' operatii1.cpp:85: cannot convert `std::string*' to `const char*' for argument ` 1' to `long int strtol(const char*, char**, int)' operatii1.cpp:86: ISO C++ forbids comparison between pointer and integer operatii1.cpp: In function `void tipar()': operatii1.cpp:138: `gata' undeclared (first use this function) operatii1.cpp:145: `b' undeclared (first use this function) operatii1.cpp: In function `int main()': operatii1.cpp:156: warning: int format, different type arg (arg 3) operatii1.cpp:157: warning: int format, string arg (arg 3) operatii1.cpp:158: call of overloaded `pow(int, int&)' is ambiguous /usr/include/bits/mathcalls.h:154: candidates are: double pow(double, double) /usr/include/c++/3.2.2/cmath:427: long double std::pow(long double, int) /usr/include/c++/3.2.2/cmath:423: float std::pow(float, int) /usr/include/c++/3.2.2/cmath:419: double std::pow(double, int) /usr/include/c++/3.2.2/cmath:410: long double std::pow(long double, long double) /usr/include/c++/3.2.2/cmath:401: float std::pow(float, float)