Eroare de compilare: user.c: In function ‘main’: user.c:18:3: warning: implicit declaration of function ‘abs’ [-Wimplicit-function-declaration] cmmdc = gcd(abs(a), abs(b)); ^ user.c:23:25: error: expected declaration specifiers or ‘...’ before ‘cmmdc’ if ((double((double)(cmmdc - a*n) / (double)(b))) == (int)(double((double)(cmmdc - a*n) / (double)(b)))) ^ user.c:23:38: error: expected ‘)’ before ‘/’ token if ((double((double)(cmmdc - a*n) / (double)(b))) == (int)(double((double)(cmmdc - a*n) / (double)(b)))) ^ user.c:23:79: error: expected declaration specifiers or ‘...’ before ‘cmmdc’ if ((double((double)(cmmdc - a*n) / (double)(b))) == (int)(double((double)(cmmdc - a*n) / (double)(b)))) ^ user.c:23:92: error: expected ‘)’ before ‘/’ token if ((double((double)(cmmdc - a*n) / (double)(b))) == (int)(double((double)(cmmdc - a*n) / (double)(b)))) ^ user.c:14:8: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &t); ^ user.c:17:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d%d%d", &a, &b, &c); ^