Compilare: user.cpp: In function ‘void rezolva()’: user.cpp:31:13: warning: unused variable ‘k’ [-Wunused-variable] int i,j,k; ^ user.cpp: In function ‘int main()’: user.cpp:61:12: warning: unused variable ‘timp’ [-Wunused-variable] double timp=clock(); ^ user.cpp: In function ‘void rezolva()’: user.cpp:30:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ user.cpp:33:57: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lf %lf %lf %lf", xp+i, yp+i, xf+i, yf+i); ^ user.cpp: In function ‘int main()’: user.cpp:59:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("seg.in", "r", stdin); ^ user.cpp:60:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("seg.out", "w", stdout); ^ user.cpp:63:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &tst); ^