Compilare: main.cpp: In function 'bool verifsubsir(int, int)': main.cpp:11:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (b<v[i].size()&&c<v[j].size()) ~^~~~~~~~~~~~ main.cpp:11:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (b<v[i].size()&&c<v[j].size()) ~^~~~~~~~~~~~ main.cpp:16:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (b==v[i].size()) ~^~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:53:13: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for (j=i+1;j<=n;j++) ^~~ main.cpp:58:17: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' if (k==0) {nr++;a[i]=1;} ^~