Eroare de compilare: main.cpp: In function 'int main()': main.cpp:17:9: error: 'sub' was not declared in this scope sub[y]++; ^~~ main.cpp:20:14: error: 'sub' was not declared in this scope if ( sub[i] == 0 ) ^~~ main.cpp:29:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int y = 0 ; y < v[x].size () ; y ++) ~~^~~~~~~~~~~~~~ main.cpp:31:15: error: 'sub' was not declared in this scope --sub[v[x][y]]; ^~~ Non zero exit status: 1