unific.cpp: In function `int mut(int)': unific.cpp:11: warning: no return statement in function returning non-void unific.cpp: In function `int main()': unific.cpp:70: warning: int format, different type arg (arg 2) unific.cpp:111: warning: int format, different type arg (arg 2) unific.cpp:113: warning: int format, different type arg (arg 2)