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#include<stdio.h> #include<string.h> #define ARRAY_MAX 1000 #define ASCII_MAX 256 int main(){ char input[ARRAY_MAX]; int i,j,temp,flag; int ascii[ASCII_MAX]={0},pk[ASCII_MAX]={0}; while(gets(input)!=NULL){ for(i=0;input[i]!=0;i++) ascii[input[i]]++; for(i=0;i<ASCII_MAX;i++) pk[i] = i; for(i=ASCII_MAX-1;i>=0;i--){ flag = 0; for(j=i;j>=0;j--){ if(ascii[pk[i]] < ascii[pk[j]]){ flag = 1; temp = pk[j]; pk[j] = pk[i]; pk[i] = temp; } } if(!flag) break; } for(i=0;i<ASCII_MAX;i++) if(ascii[pk[i]]>0) printf("%d %d\n",pk[i],ascii[pk[i]]); printf("\n"); memset(ascii,0,sizeof(ascii)); memset(pk,0,sizeof(pk)); memset(input,0,strlen(input)); } return 0; }
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