Compilare: user.cpp:66:12: warning: "/*" within comment [-Wcomment] /* c = a +-/* b; */ ^ user.cpp: In function ‘void divide_bignum(bignum*, bignum*, bignum*)’: user.cpp:213:15: warning: unused variable ‘j’ [-Wunused-variable] int i,j; /* counters */ ^ user.cpp: In function ‘int main()’: user.cpp:268:22: warning: unused variable ‘n4’ [-Wunused-variable] bignum n1, n2, n3, n4; ^ user.cpp:251:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("quadratum.in", "r", stdin); ^ user.cpp:252:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("quadratum.out", "w", stdout); ^ user.cpp:256:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &t); ^ user.cpp:267:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^