Compilare: user.cpp: In function ‘int main()’: user.cpp:5:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen( "ssm.in", "r", stdin ); ^ user.cpp:6:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen( "ssm.out", "w", stdout ); ^ user.cpp:8:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf( "%d%d", &n, &s ); ^ user.cpp:12:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf( "%d", &k ); ^ user.cpp:21:40: warning: ‘dr’ may be used uninitialized in this function [-Wmaybe-uninitialized] printf( "%d %d %d", sm, st+1, dr+1 ); ^ user.cpp:21:40: warning: ‘st’ may be used uninitialized in this function [-Wmaybe-uninitialized]