4-12-2
#include<stdio.h>
int main(void)
{
int child,women,men;
for(men=0;men<=15;men++)
for(women=0;women<=22;women++){
child=45-women-men;
if(men*3+women*2+child*0.5==45)
printf("men=%d,women=%d,child=%d\n",men,women,child);
}
return 0;
}