Compilare: main.cpp: In function 'int main()': main.cpp:15:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<strlen(t);i++) ~^~~~~~~~~~ main.cpp:18:11: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses] if(t[i]=='x'||t[i]=='y'||t[i]=='z'||t[i]=='t') ^ main.cpp:13:44: warning: unused variable 'i' [-Wunused-variable] int cx=0,cy=0,cz=0,ct=0,tl=0,nr=0,s=-1,i=1; ^