Eroare de compilare: main.cpp: In function 'int read()': main.cpp:35:34: error: 'isdigit' was not declared in this scope while (!isdigit(ch = nextch())); ^ main.cpp:39:33: error: 'isdigit' was not declared in this scope while (isdigit(ch = nextch())) x = 10 * x + ch - '0'; ^ main.cpp: At global scope: main.cpp:51:6: error: 'vector' in namespace 'std' does not name a template type std::vector < int > g[MAXN + 1]; ^~~~~~ main.cpp: In function 'void calc(int)': main.cpp:69:20: error: 'g' was not declared in this scope for (auto &y : g[x]) ^ main.cpp: In function 'void vezi(int)': main.cpp:95:20: error: 'g' was not declared in this scope for (auto &y : g[x]) ^ main.cpp: In function 'void dfs1(int)': main.cpp:151:20: error: 'g' was not declared in this scope for (auto &y : g[x]) { ^ main.cpp: In function 'void dfs2(int)': main.cpp:177:20: error: 'g' was not declared in this scope for (auto &y : g[x]) { ^ main.cpp: In function 'int main()': main.cpp:207:9: error: 'g' was not declared in this scope g[x].push_back(y); ^ Non zero exit status: 1