Typecasting in division in C
c, casting
Solution
The format specifier for `long long int` is `lld`, not `ld`.
That's especially important in the `scanf` as using the wrong specifier may end up putting the data in the wrong bytes within the variable.
Problem
``` #include <stdio.h> int main(void) { int t; long long int a[100000], n, i; scanf("%d\n", &t); while(t){ t--; scanf("%d", &n); printf("%ld\n", n); n = n * (n-1); printf("%ld\n", n); n = n/2; printf("%ld\n", n); } return 0; } ``` Can't figure out the problem in division. It's returning garbage value in the third printf statement. Can you please help me identify where the problem is?