短作业优先调度算法

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1、短作业优先调度算法#include"stdio.h"structsjf{charname[10];floatarrivetime;floatservicetime;floatstarttime;floatfinishtime;floatzztime;floatdqzztime;};sjfa[100];voidinput(sjf*p,intN){inti;printf("intputtheprocess'sname&arrivetime&servicetime:forexmple:a0100

2、");for(i=0;i<=N-1;i++){printf("inputthe%dthprocess'sinformation:",i+1);scanf("%s%f%f",&p[i].name,&p[i].arrivetime,&p[i].servicetime);}}voidPrint(sjf*p,floatarrivetime,floatservicetime,floatstarttime,floatfinishtime,floatzztime,floatdqzztime,intN){in

3、tk;printf("runorder:");printf("%s",p[0].name);for(k=1;k%s",p[k].name);}printf("theprocess'sinformation:");printf("nametarrivetservicetstarttfinishtzztdqzz");for(k=0;k<=N-1;k++){printf("%st%-.2ft%-.2ft%-.2ft%-.2ft%

4、-.2ft%-.2ft",p[k].name,p[k].arrivetime,p[k].servicetime,p[k].starttime,p[k].finishtime,p[k].zztime,p[k].dqzztime);}}//paixuvoidsort(sjf*p,intN){for(inti=0;i<=N-1;i++)for(intj=0;j<=i;j++)if(p[i].arrivetime

5、j];p[j]=temp;}}//yunxingjieduanvoiddeal(sjf*p,floatarrivetime,floatservicetime,floatstarttime,floatfinishtime,float&zztime,float&dqzztime,intN){intk;for(k=0;k<=N-1;k++){if(k==0){p[k].starttime=p[k].arrivetime;p[k].finishtime=p[k].arrivetime+p[k].servi

6、cetime;}else{p[k].starttime=p[k-1].finishtime;p[k].finishtime=p[k-1].finishtime+p[k].servicetime;}}for(k=0;k<=N-1;k++){p[k].zztime=p[k].finishtime-p[k].arrivetime;p[k].dqzztime=p[k].zztime/p[k].servicetime;}}voidsjff(sjf*p,intN){floatarrivetime=0,serv

7、icetime=0,starttime=0,finishtime=0,zztime=0,dqzztime=0;sort(p,N);for(intm=0;m

8、p[m].finishtime)i++;}floatmin=p[m+1].servicetime;intnext=m+1;//m+1=nfor(intk=m+1;k