如何解决终端消息中的分段错误？

Question

我编写了一个简单的程序，从用户那里获取姓名和数字并将其存储在一个数组中，然后在每个单元格之间进行比较，直到它达到最高等级然后显示它。问题是当它运行时会显示一条消息（分段错误（核心转储））。我真的不知道我的错误是什么。

#include <stdio.h>

int main() {
    int n;
    printf("Enter the number of students: ");
    scanf("%d", & n);
    char name[n];
    float score[n];
    for (int i = 0; i < n; i++) {
        printf("\nEnter the name of Student: ");
        scanf("%s", & name[i]);
        printf("\nEnter the score:  ");
        scanf("%f", & score[i]);
    }
    float max;
    int index;
    max = score[0];
    index = 0;
    for (int i = 1; i < n; i++) {
        if (max < score[i]) {
            max = score[i];
            index = i;
        }
    }
    printf("\nHighest mark scored is %f by student %s", name[index], score[index]);
}

Answer 1

1- you use user input to define the size of an array (wrong)
-- array in c has static size so you must define it's size before the code reach the compiling stage(use dynamic memory allocation instead)
2- scanf("%s", & name[I]); you want  to save array of char and save the address at the name variable but name it self not a pointer to save address it's just of char type  (wrong)
-- you need pointer to save the address of every name so it's array of pointer and a pointer to allocate the address of the array to it so it's  a pointer to poiner and define max size of word if you define size the user input exceed it will produce an error
3- finally you exchanged the %f,%s in printf 





    #include <stdlib.h>
    #include <stdio.h>

    #define SIZE_OF_WORD 10

    int main() {
        int n;
    printf("Enter the number of students: ");
    scanf("%d", & n);
    char **name=(char**)malloc((sizeof(char*)*n));
    for (int i = 0; i < n; i++) {
        name[i]=(char*)malloc((sizeof(char)*SIZE_OF_WORD));
    }
    float *score=(float*)malloc((sizeof(float)*n));
    for (int i = 0; i < n; i++) {
        printf("\nEnter the name of Student: ");
        scanf("%s", name[i]);
        printf("\nEnter the score:  ");
        scanf("%f", & score[i]);
    }
    float max;
    int index;
    max = score[0];
    index = 0;
    for (int i = 1; i < n; i++) {
        if (max < score[i]) {
            max = score[i];
            index = i;
        }
    }
    printf("\nHighest mark scored is %s by student %.0f\n", name[index],score[index]);
}