Compilare: main.cpp: In function 'int main()': main.cpp:20:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<strlen(s);i++) ~^~~~~~~~~~ main.cpp:20:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(int i=0;i<strlen(s);i++) ^~~ main.cpp:23:10: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' g<<sum; ^