Compilare: user.cpp: In function ‘void recompute(int)’: user.cpp:32:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i != ST[node].v.size(); ++ i) ^ user.cpp: In function ‘int bsearch(int, int)’: user.cpp:55:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i + p < ST[node].v.size() && ST[node].v[i + p] < x) ^ user.cpp: In function ‘void kthElement(int)’: user.cpp:92:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i + p < ST[node].v.size() && bit[node][i + p + 1] < k){ ^ user.cpp: In function ‘void read()’: user.cpp:121:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &N, &Q); ^ user.cpp:123:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &A[i]); ^ user.cpp: In function ‘int main()’: user.cpp:131:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &type); ^ user.cpp:133:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d ", &p); ^ user.cpp:138:42: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d", &p, &q, &k); ^