Compilare: main.cpp: In function 'void solve()': main.cpp:42:52: warning: narrowing conversion of '((-(((long long int)c) + ((1ll * ((long long int)j)) * ((long long int)a)))) / ((long long int)b))' from 'long long int' to 'int' inside { } [-Wnarrowing] intr[i].push_back({j, -(c + 1LL * j * a) / b}); ~~~~~~~~~~~~~~~~~~~^~~ main.cpp:48:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i1 = 0; i1 < intr[1].size(); ++i1) { ~~~^~~~~~~~~~~~~~~~ main.cpp:51:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i2 = 0; i2 < intr[2].size(); ++i2) { ~~~^~~~~~~~~~~~~~~~ main.cpp:56:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i2 = 0; i2 < intr[i].size(); ++i2) { ~~~^~~~~~~~~~~~~~~~ main.cpp:58:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i3 = 1; i3 < intr[i - 1].size(); ++i3) ~~~^~~~~~~~~~~~~~~~~~~~ main.cpp:21:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ main.cpp:24:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &x, &y); ^ main.cpp: In function 'int main()': main.cpp:68:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("poligon5.in", "r", stdin); ^ main.cpp:69:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("poligon5.out", "w", stdout); ^ main.cpp:72:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &t); ^