Compilare: user.cpp: In function ‘void Solve()’: user.cpp:89:59: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if (ef[iv][jv] > Ef || fabs(ef[iv][jv] - Ef) < EPS && a[iv][jv] > a[i][j] + Dist(i, j, iv, jv)) // efort egal ^ user.cpp: In function ‘void Read()’: user.cpp:39:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen( "excursie.in", "r", stdin); ^ user.cpp:40:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%lf", &n, &m, &Lmax); ^ user.cpp:43:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ( "%d", &c[i][j] ); ^ user.cpp:44:44: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ( "%d%d%d%d", &ip, &jp, &is, &js ); ^ user.cpp: In function ‘void Write()’: user.cpp:99:42: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen( "excursie.out", "w", stdout); ^