Strange Compile Error

[Stephan.Ritscher]

During the last contest I submitted the code attached at the end.
The Compile Error reported to me by UVA was (in the notification email)

g++: 00003755_PC.c: No such file or directory
g++: No input files

This is not the correct error. Now, after the contest, I receive the correct one:

04799290_24.c: In function `int cmp(const void *, const void *)':
04799290_24.c:28: implicit declaration of function `int strcasecmp(...)'

Why are the errors during the contest different? In my opinion at least compile errors should be reported correctly, because not everyone can set up the compiler used by the judge.

Code: Select all

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>

struct pilot_t {
        char name[100];
        int x, y, z;
} pilots[110];

int cmp(const void *a, const void *b)
{
        pilot_t *l = (pilot_t *) a, *r = (pilot_t *) b;
        if (l->x != r->x) return l->x - r->x;
        if (l->y != r->y) return l->y - r->y;
        if (l->z != r->z) return l->z - r->z;
        return strcasecmp(l->name, r->name);
}

int main()
{
        int n, i;
        while (scanf("%d", &n) == 1) {
                if (n == 0) break;
                for (i = 0; i < n; i++) {
                        assert(scanf("%s : %d min %d sec %d ms", pilots[i].name, &pilots[i].x, &pilots[i].y, &pilots[i].z) == 4);
                        assert(pilots[i].x >= 0 && pilots[i].x < 60);
                        assert(pilots[i].y >= 0 && pilots[i].y < 60);
                        assert(pilots[i].z >= 0 && pilots[i].z < 1000);
                        /*for (int j = 0; j < (int) strlen(pilots[i].name); j++) {
                                assert(pilots[i].name[j] >= 'A' && pilots[i].name[j] <= 'Z' 
                                        || pilots[i].name[j] >= 'a' && pilots[i].name[j] <= 'z');
                        }*/
                }
                qsort(pilots, n, sizeof(pilot_t), cmp);
                for (i = 0; i < n; i++) {
                        if (i % 2 == 0) {
                                printf("Row %d\n", i / 2 + 1);
                        }
                        printf("%s\n", pilots[i].name);
                        
                }
                printf("\n");
        }
        return 0;
}

[Carlos]

This was an old error that appeared during the contests; I didn't know it still showed some times. Unfortunately, we don't know why it produces, and we won't try to solve it.

This kind of errors will be solved once the new system is born