Getting unexpected results for array of strings when using = operator

Question

In the below code I am getting unexpected result. During first iteration s[0] is getting printed as the first element. But during the remaining iteration, 0 is getting printed. Is it wrong to use = operator instead of strcpy? I tried using strcpy but it results in segmentation fault. Why is wrong value getting printed?

int main() {
    int n, i;
    scanf("%d", &n);
    int c, j;
    char* s[n];
    char* ch = (char*)malloc(100);
    for (i = 0; i < n; i++) {
        scanf("%s", ch);
        s[i] = strdup(ch);
    }

    char* final[n];
    int count[n];
    for (i = 0; i < n; i++) {
        final[i] = "";
        count[i] = 0;
    }
    int end;
    for (i = 0; i < n; i++) {
        end = 0;
        while (1) {
            printf("%s\n", s[0]);
            if (strcmp(final[end], "")) {
                count[end]++;
                final[end] = s[i];
                // printf("%s\n",final[end]);
                end++;
                break;
            }
            else if (strcmp(final[end], s[i])) {
                final[end] = s[i];
                sprintf(final[end], "%d", count[end]);
                count[end]++;
                end++;
                break;
            }
            end++;
        }
    }
    for (i = 0; i < n; i++) {
        // printf("%s\n",final[i]);
    }
    return 1;
}

Answer 1

if (strcmp(final[end], ""))

strcmp returns 0 if final[end] compares equally to the empty string.
A 0 in the if condition means false, so the if-block is not executed. I believe you want it executed. So you should do

if (strcmp(final[end], "") == 0)

The same applies to the else if statement.