HDU 2072 Word Count---string processing

/*HDU 2072 Word Count---string processing*/#include<cstdio>//C can be changed into stdio.h#include <cstring>//C can be changed into String.hConst intMAXN = -;intMain () {Char*head1, *head2; CharA[MAXN]; CharB[MAXN][MAXN]; intI, K, Len, Cnt1, Cnt2;  while(Gets (a)) {//End of string "#" is encountered        if('#'= = a[0]){             Break; }        //working with contiguous spaces at the endLen =strlen (a);  for(i = len-1; I >=0; --i) {            if(' '==A[i]) {A[i]=0;//spaces at the end are replaced with null characters            }            Else                 Break; }//For (i)//working with contiguous spaces at the beginningLen =strlen (a); if(len = =0){//It's all spaces. Special Handlingprintf"0\n"); Continue; }         for(i =0; i < Len; ++i) {            if(' '==A[i]) {A[i]=0; }            Else{                //encountered non-whitespaceHead1 = a + i;//record a new start                 Break; }        }//For (i)Len=strlen (HEAD1); //fill a space at the end of the string to handle the last wordHead1[len] =' '; Head1[len+1] =0; Head2=Head1; Cnt1=0;//cnt1 Count Words (possibly duplicates)         for(i =0; I <= Len; ++i) {            if(' '==Head1[i]) {Head1[i]=0; //The current point is a space, then a dot is not a space, then a point is the new beginning of the word                if(' '! = Head1[i +1]){                    //record the last word and update the number of wordsstrcpy (B[cnt1], head2); ++Cnt1; Head2= Head1 + i +1;//update the new word starting point                }            }        }//For (i)//working with the same number of wordsCnt2 =Cnt1;  for(i =0; i < cnt1; ++i) {            if(b[i][0] !='#'){                 for(k = i +1; K < Cnt1; ++k) {                    if(b[k][0] !='#'&& strcmp (B[i], b[k]) = =0){                        --Cnt2; b[k][0] ='#';//have judged whether repetition is no longer judged                    }                }//For (k)b[i][0] ='#';//to this and b[i] the same word the first character has all been set to ' # '}//if}//For (i)printf"%d\n", Cnt2); }//While (gets)    return 0;}

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HDU 2072 Word Count---string processing