taler.cpp: In function `int adun(int*, int*, int*)': taler.cpp:42: warning: control reaches end of non-void function taler.cpp: In function `int scad(int*, int*, int*)': taler.cpp:64: warning: control reaches end of non-void function taler.cpp: In function `int main()': taler.cpp:69: warning: char format, different type arg (arg 2)