Compilare: main.cpp: In function 'int main()': main.cpp:15:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses] fin >> s+1; ~^~ main.cpp:24:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=3; i<=strlen(s); i++){ ~^~~~~~~~~~~ main.cpp:43:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=3; i<=strlen(s+1); i++){ ~^~~~~~~~~~~~~