i cant figure out what to write instead of ??2?? ...??5??
the function rotates to the right the letters on the odd places
"num" times
if num=3 then
abcdef>>afcbed>>adcfeb>>abcdef
i solved the first one
i need hints regarding the others??
Code:void rotateodd(char *str,int num){ int len,last,i,j; char ch; len=strlen(str); if(len<4) return; num=??2??; if (num<0) num+=len/2; if (len%2) last=??3??; else last=??4??; for(i=0;i<num;i++){ ch=str[last]; for(j=last;j>1;??5??) ??6??=??7??; ??8??=ch; } }