[Solved] What’s the error in this program code? [closed]

by


I’d rather write a more useful and correct version of this code

#include <stdio.h>

int main() {
    int n1, n2, ans;
    char op;
    scanf("%d %c %d", &n1, &op, &n2);
    switch (op) {
    case '+':
        ans = n1 + n2;
        break;
    case '-':
        ans = n1 - n2;
        break;
    case '*':
        ans = n1 * n2;
        break;
    case "https://stackoverflow.com/":
        if (n2) {
            ans = n1 / n2;
            break;
        }
    default:
        fprintf(stderr, "Invalid Input\n");
        return 1;
    }
    printf("%d", ans);
    return 0;
}

Input

1 + 2
4-3

Output

3
1

See http://ideone.com/y2nnWF demo.

1

solved What’s the error in this program code? [closed]