tuto 7 q1

#include <stdio.h>
#define NUMPLACE 3
#define NOP -1.0


//1-D array to keep track of the place names
char places[NUMPLACE] = { 'A','B','C'};
//2-D array for the adjacency matrix representation
float roads [NUMPLACE][NUMPLACE] = {

    {0.0,3.5,NOP},
    {3.2,0.0,2.8},
    {3.1,NOP,0.0}
};


int main(void){
    int from;
    int to;
    char origin, dest;
    printf("From>>");
    scanf("%c",&origin);
    for(from = 0;from < NUMPLACE ; from++)
    {
        if(places[from]== origin)
        break;
    }


    //ape function getchar
    //try run without it




    //Obtain the origin’s place name from the user and find index
    //associated with the place name

    printf("To>>");
    getchar();
    scanf("%c",&dest);
    for(to = 0;to < NUMPLACE ; to++)
    {
        if(places[to]== dest)
        break;
    }
    //Obtain the destination’s place name from the user and find index
    //associated with the place name

    printf("From %c to %c ", places[from], places[to]);

    if (roads [from][to] == NOP )
        printf("No direct road.\n");
    else
        printf("%2.1f km \n",roads [from][to]);
    //Obtain the distance from the adjacency matrix.
    //If there’s no path, then display “No direct road.”

    return(0);
}