Compilare: user.cpp: In function ‘int main()’: user.cpp:20:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < line.size(); i++) { ^ user.cpp:29:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < line.size(); i++) { ^ user.cpp:37:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = S; i < line.size(); i++) { ^ user.cpp:8:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("delfin.in", "r", stdin); ^ user.cpp:9:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("delfin.out", "w", stdout); ^ user.cpp:12:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n, &m); ^ user.cpp:37:27: warning: ‘S’ may be used uninitialized in this function [-Wmaybe-uninitialized] for (int i = S; i < line.size(); i++) { ^ user.cpp:62:30: warning: ‘apa_st’ may be used uninitialized in this function [-Wmaybe-uninitialized] int dist = max(S - apa_st, apa_st - delfin); ^ user.cpp:62:47: warning: ‘delfin’ may be used uninitialized in this function [-Wmaybe-uninitialized] int dist = max(S - apa_st, apa_st - delfin); ^ user.cpp:53:29: warning: ‘comoara’ may be used uninitialized in this function [-Wmaybe-uninitialized] cout << S - comoara << "\n"; ^ user.cpp:60:29: warning: ‘apa_dr’ may be used uninitialized in this function [-Wmaybe-uninitialized] cout << comoara - apa_dr + dist << "\n"; ^