Eroare de compilare: main.cpp: In function 'std::vector<std::pair<double, double> > readPoints(std::ifstream&)': main.cpp:409:23: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 409 | for (int i = 0; i < n; i++) { | ~~^~~ /usr/bin/ld: /usr/lib/gcc/x86_64-pc-linux-gnu/12.2.1/../../../../lib/crt1.o: in function `_start': /build/glibc/src/glibc/csu/../sysdeps/x86_64/start.S:103: undefined reference to `main' collect2: error: ld returned 1 exit status Non zero exit status: 1