Compilare: main.cpp: In function 'int main()': main.cpp:12:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<strlen(text)-1;i++){ ~^~~~~~~~~~~~~~~ main.cpp:26:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<strlen(text)-1;i++)if(text[i-1]>text[i] && text[i+1]>text[i]) ~^~~~~~~~~~~~~~~