2279149_pe.cpp

北大大牛代码 1240道题的原代码 超级权威

#include <stdio.h>
#include <string.h>

int f(char ch)
{
	return ch-'A';
}

int g(char ch)
{
	if(ch=='A'||ch=='E'||ch=='I'||ch=='O'||ch=='U')
		return 0;
	return 1;
}

int main()
{
	int i, l = 0;
	char str[100];
	char out[100];
	int mark[30];

	gets(str);
	memset(mark,0,sizeof(mark));
	i = 0;
	while(str[i]==' ')
		i++;
	strcpy(str,&str[i]);
	i = strlen(str)-1;
	while(str[i]==' ')
		i--;
	str[i+1] = '\0';
	for(i = 0; str[i] != '\0'; i++)
	{
		if(!g(str[i]))
			continue;
		if(str[i]==' '||str[i]==','||str[i]=='.'||str[i]=='?'||mark[f(str[i])]==0)
		{
			if(str[i]>='A'&&str[i]<='Z')
				mark[f(str[i])] = 1;
			out[l++] = str[i];
			if(l>1&&str[i]==' '&&out[l-2]==' ')
				l--;
		}
	}
	out[l] = '\0';
	for(i = 0; out[i] != '\0'; i++)
		if(out[i]==','||out[i]=='.'||out[i]=='?')
			if(i&&out[i-1]==' ')
				strcpy(&out[i-1],&out[i]);
	puts(out);
	return 1;
}