Compilare: main.cpp: In function 'int main()': main.cpp:33:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<s.size();i++) v[i+1] = s[i]-'0'; ~^~~~~~~~~ main.cpp:55:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(int i=1;i<ind;i++) fout<<v[i]; fout<<dg; ^~~ main.cpp:55:37: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' for(int i=1;i<ind;i++) fout<<v[i]; fout<<dg; ^~~~