#include<stdio.h>        struct Worker {char name[15]; int age; float pay;};        int Less(struct Worker r1, struct Worker r2) {            if(r1.age<r2.age) return 1; else return 0;        }        void main() {            struct Worker a[4]={{"abc",25,2420},{"def",58,4638},                         {"ghi",49,4260},{"jkl",36,3750}};            struct Worker x=a[0];            int i;            for(i=1; i<4; i++)                if(Less(x,a[i])) x=a[i];            printf("%s  %d  %6.0f\n",x.name,x.age,x.pay);        }