c Language file input/output question. It's a function to find the width of the circumference by printing coordinates, but the width of the circumference doesn't come out

//You receive a bundle of two coordinate values from a file to construct a rectangle //Create a program that calculates the width and circumference of each and outputs it to the screen

//1. Receive the name of the file containing the square information from the user //2. Initial input of the number of squares in the first line of the file //3. Create a RECTANGLE array that corresponds to the number of squares using dynamic allocation techniques //4. Read the two coordinate values (x1, y1, x2, y2) from the file and put them in the array (step 2) //Read coordinate values from a file as many as the number of squares determined) //5. Implement the function of calculating the width and circumference as a function, respectively

// Use functions as much as possible when implementing a program, and avoid using global variables // Make a structure that means coordinates and squares as shown earlier and use it

typedef struct { int x; int y; } } POINT; typedef struct { POINT P1; POINT P2; } } RECTANGLE; typedef struct { int width; int height; int area; int permeter; }ALL; FILE* getFileName() { printf ("Please enter a name for the file: "); char list[20]; scanf_s("%s", list, 20); FILE* fp = fopen(list, "rt"); If (fp == NULL) {// If there is no file, output that there is no file printf("File not found"\n"); exit(0); } return fp; } int getRecNum(FILE* fp) {

int recNum = 0;
fscanf(fp, "%d", &recNum);

return recNum;

} RECTANGLE* createRecNum(int recNum) { return (RECTANGLE*)malloc(sizeof(RECTANGLE)recNum); } void createPoint(FILE fp, RECTANGLE* point, int recNum) { for (int i = 0; i < recNum; i++) { fscanf(fp, "%d %d %d %d", &point[i].P1.x, &point[i].P2.x, &point[i].P1.y, &point[i].P2.y); } } ALL* createAll(intrecNum) {//Allocate data storage space return (ALL*)malloc(sizeof(ALL)recNum); } void makeAll(int m, ALL all, RECTANGLE* point) { for (int i = 0; i < m; i++) { all[i].width = abs(point[i].P1.x - point[i].P2.x); all[i].height = abs(point[i].P1.y - point[i].P2.y); all[i].area = abs(all[i].width)*abs(all[i].height); all[i].permeter = 2 * (abs(all[i].width) + abs(all[i].height));

    printf("P1 = [%d %d]\n", point[i].P1.x, point[i].P1.y);
    printf("P2 = [%d %d]\n", point[i].P2.x, point[i].P2.y);
    printf("width : %d\n", all[i].width);
    printf("height : %d\n", all[i].height);
    printf("area : %d\n", all[i].area);
    printf("permeter = %d\n", all[i].permeter);
}

} int main(void) { int recNum = 0; //1. Receive the name of the file containing the square information from the user FILE* fp = getFileName();

//2. Receive the number of squares in the first line of the file at first
recNum = getRecNum(fp);
printf("%d\n", recNum);


//3. Create a RECTANGLE array that corresponds to the number of squares using dynamic allocation techniques
RECTANGLE* point = NULL;
point = createRecNum(recNum);

//4. Read the two coordinate values (x1, y1, x2, y2) from the file and put them in the array (step 2) 
//Read coordinate values from a file as many as the number of squares determined)
createPoint(fp, point, recNum);

//5. The function of calculating the width and circumference is implemented as a function, respectively
//width,height,area,permeter
ALL* last = NULL;
last = createAll(recNum);
makeAll(recNum, last, point);

free(point);
free(last);

return 0;

}

//The contents of the text file are

3

10 10 20 20

20 20 70 70

30 30 50 50

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