Compilare: main.cpp: In function 'int main()': main.cpp:62:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(v[i-1][j-1].size() < p-1) ~~~~~~~~~~~~~~~~~~~^~~~~ main.cpp:64:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(v[i-1][j].size() < p-1) ~~~~~~~~~~~~~~~~~^~~~~ main.cpp:66:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(v[i][j-1].size() < p-1) ~~~~~~~~~~~~~~~~~^~~~~ main.cpp:48:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(int i = 1; i <= n; i++) ^~~ main.cpp:85:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' for(int i = 1; i <= q; i++) ^~~