Borderou de evaluare (job #651122)

Eroare de compilare: main.cpp:3:17: error: 'st' is not a namespace-name 3 | using namespace st; | ^~ main.cpp: In function 'int main()': main.cpp:7:5: error: 'ifstream' was not declared in this scope; did you mean 'std::ifstream'? 7 | ifstream fin("control.in"); | ^~~~~~~~ | std::ifstream In file included from /usr/lib/gcc/i686-pc-linux-gnu/11.2.1/include/g++-v11/ios:38, from /usr/lib/gcc/i686-pc-linux-gnu/11.2.1/include/g++-v11/istream:38, from /usr/lib/gcc/i686-pc-linux-gnu/11.2.1/include/g++-v11/fstream:38, from main.cpp:1: /usr/lib/gcc/i686-pc-linux-gnu/11.2.1/include/g++-v11/iosfwd:162:41: note: 'std::ifstream' declared here 162 | typedef basic_ifstream<char> ifstream; | ^~~~~~~~ main.cpp:8:5: error: 'ofstream' was not declared in this scope; did you mean 'std::ofstream'? 8 | ofstream fout("control.out"); | ^~~~~~~~ | std::ofstream In file included from /usr/lib/gcc/i686-pc-linux-gnu/11.2.1/include/g++-v11/ios:38, from /usr/lib/gcc/i686-pc-linux-gnu/11.2.1/include/g++-v11/istream:38, from /usr/lib/gcc/i686-pc-linux-gnu/11.2.1/include/g++-v11/fstream:38, from main.cpp:1: /usr/lib/gcc/i686-pc-linux-gnu/11.2.1/include/g++-v11/iosfwd:165:41: note: 'std::ofstream' declared here 165 | typedef basic_ofstream<char> ofstream; | ^~~~~~~~ main.cpp:10:5: error: 'fin' was not declared in this scope 10 | fin>>n; | ^~~ main.cpp:13:9: error: 'cin' was not declared in this scope 13 | cin>>a; | ^~~ main.cpp:14:9: error: 'v' was not declared in this scope 14 | v[a]++; | ^ main.cpp:18:12: error: 'v' was not declared in this scope 18 | if(v[i]!=0) | ^ main.cpp:20:13: error: 'k' was not declared in this scope 20 | k[numar]=v[i] | ^ main.cpp:35:5: error: 'fout' was not declared in this scope 35 | fout<<nr; | ^~~~