Compilare: user.cpp: In function ‘int SearchIndex(long long int, long long int)’: user.cpp:17:30: warning: unused variable ‘middle’ [-Wunused-variable] int left = 1, right = n, middle, answer; ^ user.cpp: In function ‘int main()’: user.cpp:120:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("mostenire.in", "r", stdin); ^ user.cpp:121:42: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("mostenire.out", "w", stdout); ^ user.cpp:123:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %lld", &n, &k); ^ user.cpp:125:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &v[i]); ^ user.cpp: In function ‘int SearchIndex(long long int, long long int)’: user.cpp:27:12: warning: ‘answer’ may be used uninitialized in this function [-Wmaybe-uninitialized] return answer; ^ user.cpp: In function ‘int Try(long long int, long long int)’: user.cpp:38:28: warning: ‘answer’ may be used uninitialized in this function [-Wmaybe-uninitialized] long long add = (index - 1) * (start * v[n] - difference) - start * sum[index - 1]; ^