Backpacking

input/code.c: In function 'main':
input/code.c:6:13: warning: format '%d' expects argument of type 'int *', but argument 2 has type 'int' [-Wformat=]
    6 |     scanf("%d %d", a, b);
      |            ~^      ~
      |             |      |
      |             int *  int
input/code.c:6:16: warning: format '%d' expects argument of type 'int *', but argument 3 has type 'int' [-Wformat=]
    6 |     scanf("%d %d", a, b);
      |               ~^      ~
      |                |      |
      |                int *  int
input/code.c:6:5: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
    6 |     scanf("%d %d", a, b);
      |     ^~~~~~~~~~~~~~~~~~~~
input/code.c:6:5: warning: 'a' is used uninitialized [-Wuninitialized]
    6 |     scanf("%d %d", a, b);
      |     ^~~~~~~~~~~~~~~~~~~~
input/code.c:5:9: note: 'a' was declared here
    5 |     int a,b,o;
      |         ^
input/code.c:6:5: warning: 'b' is used uninitialized [-Wuninitia...

#include <stdio.h>

int main(void)
{
    int a,b,o;
    scanf("%d %d", a, b);
    o = a+b;
    return o;
}

Test 1

Verdict: RUNTIME ERROR

Test 2

Verdict: RUNTIME ERROR

Test 3

Verdict: RUNTIME ERROR

Test 4

Verdict: RUNTIME ERROR