[HAOI2013] 跑步训练

// q.c

#include<iostream>
#include<cstdio>
#include<algorithm>
#include<cmath>
#include<cstring>
using namespace std;
int main() {
	freopen("HAOI2013T1.in","r",stdin);
	freopen("HAOI2013T1.out","w",stdout);
	int m,t,v1,v2,v3,i,ans=0; char s[3];
	scanf("%d%d%d%d%d",&m,&t,&v1,&v2,&v3);
	for(i=1;i<=t;i++) {
		scanf("%s",s);
		if(s[0]==‘u‘||s[0]==‘d‘) 
			if(ans+v1+v3<=m) ans+=v1+v3;
			else break;
		else if(ans+v2+v2<=m) ans+=v2+v2;
			else break;
	}
	printf("%d\n",i-1);
	return 0;
}