Eroare de compilare: main.cpp: In function 'int main()': main.cpp:54:5: error: 'vector' was not declared in this scope vector<int> secv = {v[i].first}; ^~~~~~ main.cpp:54:12: error: expected primary-expression before 'int' vector<int> secv = {v[i].first}; ^~~ main.cpp:56:16: error: 'secv' was not declared in this scope while((int)secv.size() < k + 1){ ^~~~ main.cpp:57:13: error: expected primary-expression before 'int' vector<int> nsecv; ^~~ main.cpp:59:42: error: 'nsecv' was not declared in this scope if((int)secv.size() - i + 1 + (int)nsecv.size() <= k + 1){ ^~~~~ main.cpp:67:13: error: 'nsecv' was not declared in this scope secv = nsecv; ^~~~~ main.cpp:70:17: error: 'secv' was not declared in this scope for(auto it:secv){ ^~~~ main.cpp:16:25: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d",&n,&k); ^ main.cpp:20:22: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&val); ^ Non zero exit status: 1