一、程序设计共113题（共计1130分）第1题（10.0分）题号:390/*------------------------------------------------【程序设计】--------------------------------------------------功能：编写函数求1~100中奇数的平方和。结果为166650.000000。------------------------------------------------*/#includevoidwwjt();floatsum(intn){/**********Program**********//**********End**********/}答案：----------------------floats=0;inti;for(i=1;i<=n;i=i+2)s=s+i*i;return(s);----------------------第2题（10.0分）题号:320/*------------------------------------------------【程序设计】--------------------------------------------------功能：在键盘上输入一个3行3列矩阵的各个元素的值（值为整数），然后输出主对角线元素的积,并在fun()函数中输出。------------------------------------------------*/#includevoidwwjt();main(){inti,j,s,a[3][3];;for(i=0;i<3;i++){for(j=0;j<3;j++)scanf("%d",&a[i][j]);}s=fun(a);printf("Sum=%d\n",s);wwjt();}intfun(inta[3][3]){/**********Program**********//**********End**********/}voidwwjt(){FILE*IN,*OUT;intm;intn;inti[3][3];into;IN=fopen("in.dat","r");if(IN==NULL){printf("ReadFILEError");}OUT=fopen("out.dat","w");if(OUT==NULL){printf("WriteFILEError");}for(m=0;m<3;m++){for(n=0;n<3;n++)fscanf(IN,"%d",&i[m][n]);}o=fun(i);{fprintf(OUT,"%d\n",o);getch();}fclose(IN);fclose(OUT);}答案：----------------------intsum;inti,j;sum=1;for(i=0;i<3;i++)sum=sum*a[i][i];returnsum;----------------------第3题（10.0分）题号:324/*------------------------------------------------【程序设计】--------------------------------------------------功能：能计算从1开始到n的自然数中偶数的平方的和，n由键盘输入，并在main()函数中输出。（n是偶数）------------------------------------------------*/#includevoidwwjt();intfun(intn){/**********Program**********//**********End**********/}main(){intm;printf("Enterm:");scanf("%d",&m);printf("\nTheresultis%d\n",fun(m));wwjt();}voidwwjt(){FILE*IN,*OUT;intt;into;intc;IN=fopen("in.dat","r");if(IN==NULL){printf("ReadFILEError");}OUT=fopen("out.dat","w");if(OUT==NULL){printf("WriteFILEError");}for(c=1;c<=5;c++){fscanf(IN,"%d",&t);o=fun(t);fprintf(OUT,"%d\n",o);}fclose(IN);fclose(OUT);}答案：----------------------intsum,i;sum=0;for(i=2;i<=n;i=i+2){sum=sum+i*i;}return(sum);----------------------第4题（10.0分）题号:345/*------------------------------------------------【程序设计】--------------------------------------------------功能：将两个两位数的正整数a、b合并形成一个整数放在c中。合并的方式是：将a数的十位和个位数依次放在c数的千位和十位上，b数的十位和个位数依次放在c数的个位和百位上。例如：当a＝45，b=12。调用该函数后，c=4251。------------------------------------------------*/#includevoidwwjt();voidfun(inta,intb,long*c){/**********Program**********//**********End**********/}main(){inta,b;longc;printf("inputa,b:");scanf("%d%d",&a,&b);fun(a,b,&c);printf("Theresultis:%ld\n",c);wwjt();}voidwwjt(){FILE*rf,*wf;inti,a,b;longc;rf=fopen("in.dat","r");wf=fopen("out.dat","w");for(i=0;i<10;i++){fscanf(rf,"%d,%d",&a,&b);fun(a,b,&c);fprintf(wf,"a=%d,b=%d,c=%ld\n",a,b,c);}fclose(rf);fclose(wf);}答案：----------------------*c=a/10*1000+a%10*10+b/10+b%10*100;----------------------第5题（10.0分）题号:366/*------------------------------------------------【程序设计】--------------------------------------------------功能：求一组数中大于平均值的数的个数。例如：给定的一组数为1,3,6,9,4,23,35...
