Compilare: user.cpp: In function ‘int main()’: user.cpp:10:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d %d", &N, &k); ^ user.cpp:16:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d", &A[i]); ^ user.cpp:46:50: warning: ‘rez_f’ may be used uninitialized in this function [-Wmaybe-uninitialized] fprintf(g, "%d %d %d", rez_i + 1, rez_f + 1, rez); ^ user.cpp:46:50: warning: ‘rez_i’ may be used uninitialized in this function [-Wmaybe-uninitialized]