我在这里遇到问题，找出学生数量（n）的最高总分，并为学生显示信息如何获得。 请不要介意无用的信息，对不起，代码太长了，但我很感激帮助。 谢谢!!
#include<stdio.h>
#include<conio.h>
#include<stdlib.h>
#include<string.h>
//Function Prototype
void add( struct student s[] );
void deleting( struct student s[] );
void update( struct student s[] );
void view( struct student s[] );
void calculateAvg( struct student s[] );
void max( struct student s[] );
/*void min( struct student s[] );
void find( struct student s[] );
void sort( struct student s[] );*/
//Size
int size = 0;
//Structure
struct student{
int id;
char name[25];
char sex; // M(Male) || F(Female)
int q1,q2,mid,final,total;
}s[20];
int main()
{
int choice;
system("CLS");
printf("\n==========================");
printf("\n MENU");
printf("\n==========================");
printf("\n1. Add student records");
printf("\n2. Delete student records");
printf("\n3. Update student records");
printf("\n4. View all student records");
printf("\n5. Calculate an average of a selected student’s scores");
printf("\n6. Show student who gets the max total score");
printf("\n7. Show student who gets the min total score");
printf("\n8. Find student by ID");
printf("\n9. Sort records by total scores");
printf("\n10. EXIT!");
printf("\n\n Please enter your choice: ");
scanf("%d",&choice);
switch(choice)
{
case 1: add(s);break;
case 2: deleting(s);break;
case 3: update(s);break;
case 4: view(s);break;
case 5: calculateAvg(s);break;
case 6: max(s);break;
/*case 7: min(s);break;
case 8: find(s);break;
case 9: sort(s);break;
case 10: exit(1);break;*/
}
getch();
}
void add( struct student s[] )
{
char choice;
int j;
system("CLS");
printf("\nPlease enter student no.%d information below:\n",size+1);
printf("ID : ");
scanf("%d",&s[size].id);
printf("Name : ");
scanf("%s",&s[size].name);
printf("Sex [M=Male||F=Female] : ");
scanf(" %c",&s[size].sex);
printf("Quiz1: ");
scanf("%d",&s[size].q1);
printf("Quiz2: ");
scanf("%d",&s[size].q2);
printf("Mid-term: ");
scanf("%d",&s[size].mid);
printf("Final: ");
scanf("%d",&s[size].final);
++size;
printf("ADD PROCESS COMPLETE!");
printf(" SIZE=%d",size);
printf("\nPRESS (R) TO RETURN, PRESS (A) TO ADD: ");
scanf(" %c",&choice);
if ( choice == 'R' || choice == 'r')
main();
else if ( choice == 'a' || choice == 'A')
add(s);
getch();
}
void deleting( struct student s[] )
{
int num,i,j,flag=0;
char choice;
system("CLS");
printf("Please enter student ID to delete: ");
scanf("%d",&num);
for ( i=0; i<size; ++i)
{
if ( s[i].id == num )
{
for (j=i; j<size; ++j)
{
s[j] = s[j+1];
}
--size;
flag=1;
break;
}
}
if (flag==1)
printf("DELETE PROCESS IS DONE!");
else if (flag==0)
printf("ERROR!!");
printf("\nPRESS (R) TO RETURN, PRESS (D) TO DELETE: ");
scanf(" %c",&choice);
if ( choice == 'R' || choice == 'r')
main();
else if ( choice == 'D' || choice == 'd')
deleting(s);
getch();
}
void update( struct student s[] )
{
int i,num,flag=0;
char choice;
system("CLS");
printf("Please enter student ID to update: ");
scanf("%d",&num);
for ( i=0; i<size; ++i)
{
if ( s[i].id == num )
{
flag=1;
printf("\nStudent no.%d information:\n",i+1);
printf("ID:%d |",s[i].id);
printf("Name:%s |",s[i].name);
printf("Sex:%c |",s[i].sex);
printf("Quiz1:%d |Quiz2:%d |Mid-term:%d |Final:%d |",s[i].q1,s[i].q2,s[i].mid,s[i].final);
printf("\n\nPlease enter new inforamtion to update: \n\n");
printf("ID : ");
scanf("%d",&s[i].id);
printf("Name : ");
scanf("%s",&s[i].name);
printf("Sex [M=Male||F=Female] : ");
scanf(" %c",&s[i].sex);
printf("Quiz1: ");
scanf("%d",&s[i].q1);
printf("Quiz2: ");
scanf("%d",&s[i].q2);
printf("Mid-term: ");
scanf("%d",&s[i].mid);
printf("Final: ");
scanf("%d",&s[i].final);
break;
}
}
if (flag==1)
printf("UPDATE PROCESS IS DONE!");
else if (flag==0)
printf("ERROR!!");
printf("\nPRESS (R) TO RETURN, PRESS (U) TO UPDATE: ");
scanf(" %c",&choice);
if ( choice == 'R' || choice == 'r')
main();
else if ( choice == 'U' || choice == 'u')
update(s);
getch();
}
void view( struct student s[] )
{
char choice;
//system("CLS"); may be added if wanted.
for (int j=0; j<size; ++j)
{
printf("\nStudent no.%d information:\n",j+1);
printf("ID:%d |",s[j].id);
printf("Name:%s |",s[j].name);
printf("Sex:%c |",s[j].sex);
printf("Quiz1:%d |Quiz2:%d |Mid-term:%d |Final:%d |",s[j].q1,s[j].q2,s[j].mid,s[j].final);
}
printf("\n\nSIZE=%d",size);
printf("\nPRESS (R) TO RETURN :");
scanf(" %c",&choice);
if ( choice == 'R' || choice == 'r')
main();
getch();
}
void calculateAvg( struct student s[] )
{
int i,total,flag=0,num;
char choice;
system("CLS");
printf("Please enter student ID to calculate average of marks: ");
scanf("%d",&num);
for ( i=0; i<size; ++i)
{
if ( s[i].id == num )
{
s[i].total = s[i].q1 + s[i].q2 + s[i].mid + s[i].final;
printf("\n\n Student no.%d information:\n",i+1);
printf("ID:%d |",s[i].id);
printf("Name:%s |",s[i].name);
printf("Sex:%c |",s[i].sex);
printf("Quiz1:%d |Quiz2:%d |Mid-term:%d |Final:%d |",s[i].q1,s[i].q2,s[i].mid,s[i].final);
printf("\n\n TOTAL = %d",s[i].total);
printf("\n AVERAGE = %d",s[i].total/4);
flag=1;
}
break;
}
if (flag==1)
printf("\n\nAVERAGE CALCULATED!");
else if (flag==0)
printf("ERROR!!");
printf("\nPRESS (R) TO RETURN :");
scanf(" %c",&choice);
if ( choice == 'R' || choice == 'r')
main();
getch();
}
void max( struct student s[] )
{
int i,max;
s[i].total = s[i].q1 + s[i].q2 +s[i].mid + s[i].final
max = s[0].total;
for (i=0; i<size; ++i)
{
if ( s[i].total > max )
{
max = s[i].total;
}
}
printf("\nHighest total score is %d belongs to student ID (%d)",max,)//\\problem
}
答案 0 :(得分：0)
所以我不确定你要对这一行做些什么：s[i].total = s[i].q1 + s[i].q2 + s[i].mid + s[i].final。但我稍微修改了你的方法。
void max( struct student s[] )
{
int i, max, id;
s[0].total = s[0].q1 + s[0].q2 + s[0].mid + s[0].final
max = s[0].total;
id = s[0].id;
for (i = 1; i < size; i++)
{
s[i].total = s[i].q1 + s[i].q2 + s[i].mid + s[i].final
if ( s[i].total > max )
{
max = s[i].total;
id = s[i].id;
}
}
printf("\nHighest total score is %d belongs to student ID (%d)", max, id)//\\problem
}
所以在这个解决方案中我添加了一个id，它是根据你的学生ID分配的。当发现新的最大值时，更新id。 Max初始化为第一批学生。你可以尝试使用这样的东西吗？