Compilare: main.cpp: In function 'int main()': main.cpp:15:41: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("fractii2.in" , "r" , stdin); ^ main.cpp:16:43: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("fractii2.out" , "w" , stdout); ^ main.cpp:18:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d" , &p , &n); ^ main.cpp:34:41: warning: 'j' may be used uninitialized in this function [-Wmaybe-uninitialized] aux = d[i + k][k] + sp[j] - sp[(k - 1) / 2]; ~~~~^