c語言第四次上機作業(yè)參考有

念書破萬卷下筆若有神第四次上機作業(yè)參照答案：1．數(shù)組轉置在主函數(shù)中定義一個n（1<=n<=6）維方陣，并從鍵盤讀入數(shù)組元素；編寫函數(shù)transpose(a，n)實現(xiàn)數(shù)組a轉置；在主函數(shù)中輸出轉置后的方陣。例：輸入41234輸出159135678261014910111237111513141516481216#include<stdio.h>#defineN6voidtranspose(inta[][N],intn);voidmain(){intn,i,j;inta[N][N];printf("Inputn(n<=6):");scanf("%d",&n);printf("Inputthearray:\n");for(i=0;i<n;i++)for(j=0;j<n;j++)scanf("%d",&a[i][j]);printf("Displaythearray:\n");for(i=0;i<n;i++){for(j=0;j<n;j++)printf("%-4d",a[i][j]);printf("\n");}transpose(a,n);printf("Displaythetransposedarray:\n");for(i=0;i<n;i++){for(j=0;j<n;j++)printf("%-4d",a[i][j]);printf("\n");}}voidtranspose(inta[][N],intn){inti,j,t;for(i=0;i<n;i++)for(j=0;j<i;j++){t=a[i][j];a[i][j]=a[j][i];a[j][i]=t;念書破萬卷下筆若有神}}2．學生信息編寫4個函數(shù)實現(xiàn)以下功能：1）函數(shù)input()輸入20個學生姓名和高考總分；2）函數(shù)sort()按高考總分從高到低的次序排序，姓名次序也隨之調(diào)整；3）函數(shù)display()顯示學生姓名及其高考總分；4）在主函數(shù)中輸入一個姓名，編寫函數(shù)search()用次序查找方法找出該學生。若查找成功，在主函數(shù)中顯示該生姓名及其高考總分；不然顯示查找失敗。#include<stdio.h>#include<string.h>#defineN3#defineLEN80voidinput(charname[][LEN],floats[]);voiddisplay(charname[][LEN],floats[]);voidsort(charname[][LEN],floats[]);intsearch(charname[][LEN],chars[]);voidmain(){intnum;charname[N][LEN],student[LEN];floatscore[N];input(name,score);puts("Beforesorting:");display(name,score);sort(name,score);puts("Aftersorting:");display(name,score);printf("Inputstudentnameyouwanttosearch:");fflush(stdin);gets(student);num=search(name,student);if(num==-1)puts("SearchFailure!");elseprintf("%s'sscoreis%.2f\n",student,score[num]);}voidinput(charname[][LEN],floats[])念書破萬卷下筆若有神{inti;printf("Inputnameandscore:\n");for(i=0;i<N;i++){scanf("%s",name[i]);scanf("%f",&s[i]);}}voiddisplay(charname[][LEN],floats[]){inti;printf("Displaynameandscore:\n");for(i=0;i<N;i++){printf("%-10s",name[i]);printf("%.2f\n",s[i]);}}voidsort(charname[][LEN],floats[]){inti,j,k;floatt;charstring[LEN];for(i=0;i<N-1;i++){k=i;for(j=i+1;j<N;j++)if(s[j]>s[k])k=j;if(k!=i){t=s[i];s[i]=s[k];s[k]=t;strcpy(string,name[i]);strcpy(name[i],name[k]);strcpy(name[k],string);}}}intsearch(charname[][LEN],chars[]){inti;for(i=0;i<N;i++)if(strcmp(name[i],s)==0)returni;return-1;}3．字符串辦理念書破萬卷下筆若有神定義兩個C源程序言件：和。中包括主函數(shù)，實現(xiàn)字符串辦理功能選項和字符串的輸入與結果的輸出。中包括兩個函delchar(s,c)和strrev(s)，實現(xiàn)刪除字符和字符串反轉功能。delchar(s,c)：在主函數(shù)中輸入字符串和要刪除的字符，此函數(shù)將字符串s中出現(xiàn)的全部c字符刪除；再在主函數(shù)中輸出刪除后的字符串。strrev(s)：在主函數(shù)中讀入字符串，此函數(shù)實現(xiàn)將字符串s反轉；再在主函數(shù)中輸出反轉后的字符串。SAMPLEOUTPUT:Reverseastring.Deleteacharacterinastring.Pleaseinputyourchoice:1Enterastring:holidayReversedstringis：yadilohWouldyouliketocontinue?（y/n）YReverseastring.Deleteacharacterinastring.Pleaseinputyourchoice:2Enterastring:oneworld,onedreamEnteracharacteryouwanttodelete:oDeletedstringis：newrld,nedreamWouldyouliketocontinue?（y/n）N/*fmain.c*/#include<stdio.h>#include"e:\temp\fstring.c"#defineN80voidstrreverse(chars[]);voiddelchar(chars[],charc);voidmain(){intchoice1;charchoice2,c,s[N];while(1){printf("1.Reverseastring.\n");printf("2.Deleteacharacterinastring.\n");念書破萬卷下筆若有神printf("Pleaseinputyourchoice:");scanf("%d",&choice1);switch(choice1){case1:printf("Enterastring:");fflush(stdin);gets(s);strreverse(s);printf("Reversedstringis：");puts(s);break;case2:printf("Enterastring:");fflush(stdin);gets(s);printf("Enteracharacteryouwanttodelete:");fflush(stdin);c=getchar();delchar(s,c);printf("Deletedstringis：");puts(s);break;}printf("Wouldyouliketocontinue?(y/n)");fflush(stdin);choice2=getchar();if(choice2=='N'||choice2=='n')break;}}/*fstring.c*/#include<string.h>voidstrreverse(chars[]){inti,j;chart;j=strlen(s);j--;for(i=0;i<j;i++,j--){t=s[i];s[i]=s[j];s[j]=t;}

}voiddelchar(chars[],charc){inti,j;chartemp[80];for(i=0,j=0;s[i]!='\0';){if(s[i]!=c)temp[j++]=s[i++];elsei++;}temp[j]='\0';for(i=0;temp[i]!='\0';i++)s[i]=temp[i];s[i]='\0';}4．分別用函數(shù)和帶參數(shù)的宏，從三個數(shù)中找出最大數(shù)。/*函數(shù)方式實現(xiàn)*/念書破萬卷下筆若有神#include<stdio.h>intmax(inta,intb,intc);voidmain(){inta,b,c;printf("Input3integers:\n");scanf("%d%d%d",&a,&b,&c);printf("Maxof%d,%d,%dis%d\n",a,b,c,max(a,b,c));}intmax(inta,intb,intc){intt;t=a<b?a:b;returnt>c?t:c;}/*帶