Compilare: user.cpp: In function ‘void checkLine(Cop, Cop)’: user.cpp:92:33: warning: narrowing conversion of ‘((long double)a / 1.0e+4l)’ from ‘long double’ to ‘double’ inside { } [-Wnarrowing] Line P1P2 = {(long double)a / E, (long double)b / E, (long double)c / E}; ^ user.cpp:92:53: warning: narrowing conversion of ‘((long double)b / 1.0e+4l)’ from ‘long double’ to ‘double’ inside { } [-Wnarrowing] Line P1P2 = {(long double)a / E, (long double)b / E, (long double)c / E}; ^ user.cpp:92:73: warning: narrowing conversion of ‘((long double)c / 1.0e+4l)’ from ‘long double’ to ‘double’ inside { } [-Wnarrowing] Line P1P2 = {(long double)a / E, (long double)b / E, (long double)c / E}; ^ user.cpp: In function ‘void checkOx(Cop, Cop)’: user.cpp:123:33: warning: narrowing conversion of ‘((long double)a / 1.0e+4l)’ from ‘long double’ to ‘double’ inside { } [-Wnarrowing] Line P1P2 = {(long double)a / E, (long double)b / E, (long double)c / E}; ^ user.cpp:123:53: warning: narrowing conversion of ‘((long double)b / 1.0e+4l)’ from ‘long double’ to ‘double’ inside { } [-Wnarrowing] Line P1P2 = {(long double)a / E, (long double)b / E, (long double)c / E}; ^ user.cpp:123:73: warning: narrowing conversion of ‘((long double)c / 1.0e+4l)’ from ‘long double’ to ‘double’ inside { } [-Wnarrowing] Line P1P2 = {(long double)a / E, (long double)b / E, (long double)c / E}; ^ user.cpp: In function ‘void checkOy(Cop, Cop)’: user.cpp:138:33: warning: narrowing conversion of ‘((long double)a / 1.0e+4l)’ from ‘long double’ to ‘double’ inside { } [-Wnarrowing] Line P1P2 = {(long double)a / E, (long double)b / E, (long double)c / E}; ^ user.cpp:138:53: warning: narrowing conversion of ‘((long double)b / 1.0e+4l)’ from ‘long double’ to ‘double’ inside { } [-Wnarrowing] Line P1P2 = {(long double)a / E, (long double)b / E, (long double)c / E}; ^ user.cpp:138:73: warning: narrowing conversion of ‘((long double)c / 1.0e+4l)’ from ‘long double’ to ‘double’ inside { } [-Wnarrowing] Line P1P2 = {(long double)a / E, (long double)b / E, (long double)c / E}; ^ user.cpp: In function ‘int main()’: user.cpp:188:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < L.size(); ++ i) ^ user.cpp:194:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i < L.size(); ++ i) ^ user.cpp:199:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < L.size(); ++ i) ^ user.cpp:164:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ user.cpp:168:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lf%lf", &x, &y); ^