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#include <stdio.h>
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int main()
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{
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printf(" 1.Input\n 2.Output\n 3.Order\n 4.Quit\n");
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char a;
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for(;;)
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{
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a=getchar();
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switch(a)
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{
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case'i': printf("Please input info of the three students:\n");
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struct Student
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{
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int n;
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float x;
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float y;
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float z;
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float s;
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float w;
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};
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int i,j,k;
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struct Student stu[3],t;
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for(i=0;i<3;i++)
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{
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scanf("%d%f%f%f",&stu[i].n,&stu[i].x,&stu[i].y,&stu[i].z);
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}
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stu[0].s=stu[0].x+stu[0].y+stu[0].z;
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stu[1].s=stu[1].x+stu[1].y+stu[1].z;
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stu[2].s=stu[2].x+stu[2].y+stu[2].z;
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stu[0].w=stu[0].s/3;
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stu[1].w=stu[1].s/3;
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stu[2].w=stu[2].s/3;
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for(i=0;i<2;i++)
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{
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k=i;
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for(j=i+1;j<3;j++)
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{
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if(stu[k].w<stu[j].w)
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k=j;
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}
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t=stu[k];stu[k]=stu[i];stu[i]=t;
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}
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for(j=0;j<3;j++)
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{
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printf("ѧ<EFBFBD><EFBFBD> %d <20>ܳɼ<DCB3> %.1f ƽ<><C6BD><EFBFBD>ɼ<EFBFBD> %.1f\n",stu[j].n,stu[j].s,stu[j].w);
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}
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break;
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case'm': printf("You are trying to Make things ordered");break;
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case'q': printf("You are about to Quit");break;
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case'\n': printf("\n");break;
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default: printf("Wrong input");
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}
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}
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}
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