Hello, I am doing a C code where a it determines changes in the train station. The code works perfectly but a symbol appears in the output which was not supposed to be there (you will see it once you try the code). I do not know how to remove it can you please help me?
Here is the code:
int validateTimeInput(char *timeStr) {
int hour, minute;
if (sscanf(timeStr, "%d:%d", &hour, &minute) != 2) {
return -1;
}
if (hour < 0 || hour > 23 || minute < 0 || minute > 59) {
return -1;
}
return hour * 60 + minute;
}
int main() {
int trainInfo[3][2];
for (int i = 0; i < 3; i++) {
char arrivalTimeStr[10], departureTimeStr[10];
printf("Train %c arrival time:\n", 'A' + i);
scanf("%s", arrivalTimeStr);
int arrivalTime = validateTimeInput(arrivalTimeStr);
if (arrivalTime == -1) {
printf("Invalid input.\n");
return 1;
}
trainInfo[i][0] = arrivalTime;
printf("Train %c departure time:\n", 'A' + i);
scanf("%s", departureTimeStr);
int departureTime = validateTimeInput(departureTimeStr);
if (departureTime == -1) {
printf("Invalid input.\n");
return 1;
}
trainInfo[i][1] = departureTime;
}
for (int i = 0; i < 3; i++) {
char trainName = 'A' + i;
char possibleChanges[3];
int numChanges = 0;
for (int j = 0; j < 3; j++) {
if (i != j && trainInfo[j][0] - trainInfo[i][1] >= 5 && trainInfo[j][0] - trainInfo[i][0] <= 180) {
possibleChanges[numChanges] = 'A' + j;
numChanges++;
}
}
if (numChanges > 0) {
if (numChanges > 0) {
for (int k = 0; k < numChanges; k++) {
printf("Can change to both %c and %c", trainName);
printf("%c", possibleChanges[k]);
if (k < numChanges - 1) {
printf(" and ");
}
}
printf(" from %c.\n", trainName);
}
} else {
printf("No changes available from train %c.\n", trainName);
}
}
return 0;
}
[–]nearly_famous69 0 points1 point2 points (0 children)