3089 - 1999年秋浙江省计算机等级考试二级C 编程题(2)
编制程序，统计文本stdin中字符$出现的次数，并将结果写入文件stdout
Input
字符文本
Output
$次数
Examples
Input
as$dfkjhkjkjdhf asdfkj$lskdfj werijweirjo$wie
Output
3
Hint
#include <stdio.h> int main(){ FILE *p; ..... //p=fopen("data.txt","r"); p=stdin; ..... //p=fopen("res.txt","w"); p=stdout; .... return 0; }
Solution C
#include<stdio.h> int main() { char a[1000]; int b=0; int i; for(i=0;scanf("%c",&a[i]),a[i]!=' ';i++) { if(a[i]=='$') b++; } printf("%d\n",b); return 0; }
Solution C++
#include<iostream> using namespace std; int main() { int ans=0; char c; while (cin>>c && c!=' ') if (c=='$') ans++; cout<<ans<<endl; return 0; }
Hint
#include <stdio.h>
int main(){
FILE *p;
.....
//p=fopen("data.txt","r");
p=stdin;
.....
//p=fopen("res.txt","w");
p=stdout;
....
return 0;
}