2086 - 统计dollar符
编写程序，统计字符串中符号$的出现次数，输入要以EOF结束。
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> #include<string.h> main() { char ch[10000]; int sum=0,k; while(scanf("%s",&ch)!=EOF) { for(int i=0;i<strlen(ch);i++) if(ch[i]=='$') sum++; } printf("%d\n",sum); }
Solution C++
#include <cstdio> #include <string> #include <iostream> using namespace std; int main() { string a; int ans = 0; while(cin >> a) { for(int i = 0; i < (int)a.size(); i++) if(a[i] == '$') ans++; } cout << ans << endl; }
Hint
#include <stdio.h>
int main(){
FILE *p;
.....
//p=fopen("data.txt","r");
p=stdin;
.....
//p=fopen("res.txt","w");
p=stdout;
....
return 0;
}