Compilare: user.cpp: In function ‘void create(int, int)’: user.cpp:52:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(pos == v.size()) ~~~~^~~~~~~~~~~ user.cpp: In function ‘void solve()’: user.cpp:163:9: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation] for(i=1; i<=n; ++i) cout << a[i] << ' '; cout << '\n'; ^~~ user.cpp:163:50: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘for’ for(i=1; i<=n; ++i) cout << a[i] << ' '; cout << '\n'; ^~~~ user.cpp: In function ‘void read(int&)’: user.cpp:30:71: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] if(cursor == bsize) fread(buffer, 1, bsize, stdin), cursor = 0; ^ user.cpp:37:71: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] if(cursor == bsize) fread(buffer, 1, bsize, stdin), cursor = 0; ^ user.cpp: In function ‘int main()’: user.cpp:169:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("produse2.in","r",stdin); ^ user.cpp:170:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("produse2.out","w",stdout); ^ user.cpp:172:47: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buffer, 1, bsize, stdin), cursor = 0; ^