中国石油大学c语言实验题8.0.doc

#include #include #define N 30void ReadScore(int score,int num,int n) int i; for(i=0;in;i+) printf(Input students ID and score:); scanf(%d%d,&numi,&scorei); void Average(int score,int n) int i,sum=0; for(i=0;in;i+) sum+=scorei; printf(平均分为：%d,sum/n) ;void Sum(int score,int n) int i,sum=0; for(i=0;i0;j-) for(k=1;kscorek) t=scorek,scorek=scorek-1,scorek-1=t; w=numk,numk=numk-1,numk-1=w; printf(第%d名的同学学号是%d，成绩为%dn,i,numk-1,scorek-1); i+; void T(int num,int score,int n) int j,k,t,i=1,w; printf(成绩由低到高排列：n); for(j=n;j0;j-) for(k=1;kj;k+) if(scorek-10;j-) for(k=1;kj;k+) if(numk-10;j-) for(k=1;kscorek) p=numk-1,numk-1=numk,numk=p; t=scorek,scorek=scorek-1,scorek-1=t; bi=scorek-1; i+; for(i=0;in;i+) if(numi=x) w=scorei; for(i=0;in;i+) if(bi=w) printf(他的分数是：%d，是第%d名,w,i+1); void level(int score,int n) int i; double a=0,b=0,c=0,d=0,e=0; for(i=0;i=90) a+; if(scorei=80&scorei=70&scorei=60&scorei69) d+; if(scorei=59) e+; printf(优秀人数占总人数的百分之%.0lfn,(a/n)*100.0); printf(良好人数占总人数的百分之%.0lfn,(b/n)*100.0); printf(中等人数占总人数的百分之%.0lfn,(c/n)*100.0); printf(及格人数占总人数的百分之%.0lfn,(d/n)*100.0); printf(不及格人数占总人数的百分之%.0lfn,(e/n)*100.0);void output(int score,int num,int n) int i; for(i=0;in;i+) printf(学号：%d,成绩：%dn,numi,scorei); int main() int h,scoreN,n,x,i; int numN; printf(1.Input recordn); printf(2.Caculate total and average score of coursen); printf(3.Sort in descending order by scoren); printf(4.Sort in descending order by scoren); printf(5.Sort in ascending order by numbern); printf(6.Search by numbern); printf(7.Statistic analysisn); printf(8.List recordn); printf(0.Exitn); printf(Please enter your choicen); for(i=0;i+) printf(第一次使用请输入1:); scanf(%d,&h); if(h=0)return 0; else if(h=1) break; printf(请输入学生人数:); scanf(%d,&n); while(h!=0) switch(h) case 1: ReadScore(score,num,n); break; case 2: Sum(score,n),Average(score,n); break; case 3: S(num,score,n); break; case 4: T(num,score,n); break; case 5: M(num,score,n); break; case 6: scanf(%d,&x),LinSearch(score,num,x,n); break; case 7: level(sco