Compilare: main.cpp: In function 'void dfs(int)': main.cpp:53:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int h = 0 ; h < g[version].size() ; h++) ~~^~~~~~~~~~~~~~~~~~~ main.cpp:51:25: warning: array subscript is above array bounds [-Warray-bounds] sol[queries[version][2]] = query(queries[version][0] , queries[version][1]); ~~~~~~~~~~~~~~~~~~^ main.cpp: In function 'int main()': main.cpp:83:19: warning: array subscript is above array bounds [-Warray-bounds] queries[i][2] = i; ~~~~~~~~~~~~^