palindromuri.cpp: In function `long long unsigned int calcul1()': palindromuri.cpp:18: warning: comparison between signed and unsigned integer expressions palindromuri.cpp: In function `long long unsigned int calcul2()': palindromuri.cpp:24: warning: comparison between signed and unsigned integer expressions palindromuri.cpp: In function `int main()': palindromuri.cpp:109: warning: int format, different type arg (arg 2) palindromuri.cpp:89: warning: unused variable `int z1' palindromuri.cpp:89: warning: unused variable `int z2' palindromuri.cpp:94: warning: unused variable `int t1' palindromuri.cpp:94: warning: unused variable `int t2'