//2016 1-4
//1、
#include<stdio.h>
#define m 10
int main(){
int x=0,zero=0,y=0;
for(int i=0;i<m;i++)
{
int w;
scanf("%d",&w);
if(w>0) y++;
else if(w<0) x++;
else zero++;
printf("%d %d %d\n",x,zero,y);
}
}
2、
#include<stdio.h>
#include<math.h>
int isflag(int n)
{
for(int i=2;i<=sqrt(n);i++)
if(n%i==0) return 0;
return 1;
}
int main()
{
for(int i=10;i<100;i++)
if(isflag(i))
{
int x=i/10+(i%10)*10;
if(isflag(x))
printf("%d\n",x);
}
}
3、
#include<stdio.h>
int main(int argc, char const *argv[])
{
printf("请输入 总额： 类型：(1/2) 年限： \n");
int x;
int y;
int z;
double rate;
scanf("%d %d %d",&x,&y,&z);
if(y==1)
{
if(z>=1&&z<=5) rate=2.75*0.01;
else if(z>5&&z<=30) rate=3.25*0.01;
else {
printf("输入数据有误\n");
return 0;
}
}
else if(y==2)
{
if(z==1) rate=4.35*0.01;
else if(z>=2&&z<=5) rate=4.75*0.01;
else if(z>5&&z<=30) rate=4.9*0.01;
else {
printf("输入数据有误\n");
return 0;
}
}
else
{
printf("输入数据有误\n");
return 0;
}
double fixed=x*1.0/z/12;
double sum;
double SUM=0;
for(int i=1;i<=z*12;i++)
{
sum=fixed+(x-fixed*(i-1))*rate;
SUM+=sum;
printf("第%d个月还款%lf\n",i,sum);
}
printf("总还款%lf\n",SUM);
}
//分模块写会好一些吧
//4、
#include<stdlib.h>
#include<stdio.h>
struct stu{
int x;
double scorex;
int y;
double scorey;
int z;
double scorez;
int w;
double scorew;
int sumcredit;
double avescore;
}student[40];
int cmp(const void *a,const void *b)
{
if((*(struct stu*)a).sumcredit!=(*(struct stu*)b).sumcredit)
return (*(struct stu*)b).sumcredit-(*(struct stu*)a).sumcredit;
else return (*(struct stu*)b).avescore-(*(struct stu*)a).avescore;
}
int main(int argc, char const *argv[])
{
int no;
for(int i=1;i<=3;i++)
{
double a,b,c,d;
scanf("%d",&no);
scanf("%lf %lf %lf %lf",&a,&b,&c,&d);
if(a>60) student[no-1].x=5;
else student[no-1].x=0;
if(b>60) student[no-1].y=4;
if(c>60) student[no-1].z=4;
if(d>60) student[no-1].w=3;
student[no-1].scorex=a;
student[no-1].scorey=b;
student[no-1].scorez=c;
student[no-1].scorew=d;
student[no-1].sumcredit=student[no-1].x+student[no-1].y+student[no-1].z+student[no-1].w;
student[no-1].avescore=(a+b+c+d)/4;
}
qsort(student,3,sizeof(student[0]),cmp);
for(int i=1;i<=36;i++)
{
printf("%d %lf\n",student[i-1].sumcredit,student[i-1].avescore );
}
return 0;
}
