Compilare: main.cpp: In function 'int main()': main.cpp:13:40: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen ("concert2.in", "r", stdin); ^ main.cpp:14:42: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen ("concert2.out", "w", stdout); ^ main.cpp:18:35: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf ("%d%d%d", &n, &k1, &k2); ^ main.cpp:20:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf ("%d", &v[i]); ^ main.cpp:72:48: warning: 'pozdescr' may be used uninitialized in this function [-Wmaybe-uninitialized] d[1][j].lsecv = d[1][pozdescr].lsecv + 1; ~~~~~~~~~~~~~~~^~~~~