大佬来帮帮我QWQ

#include<bits/stdc++.h>
using namespace std;
int main()
{
	int x,num=0;
	scanf("%d",x);
	float c=12.01,h=1.008,o=16.00,n=14.01;
	char s[x];
	for(int i=1;i<=x;i++)
	{
		scanf("%s",s);
	}
	for(int i=1;i<=x;i++)
	{
		if(s[i]==67&&s[i+1]<58&&s[i+1]>47)
		{
			num+=c*(s[i+1]-48);
			i++;
		}
		if(s[i]==67&&s[i+1]>57)
		num+=c;
		
		if(s[i]==72&&s[i+1]<58&&s[i+1]>47)
		{
			num+=h*(s[i+1]-48);
			i++;
		}
		if(s[i]==72&&s[i+1]>57)
		num+=h;
		
		if(s[i]==79&&s[i+1]<58&&s[i+1]>47)
		{
			num+=o*(s[i+1]-48);
			i++;
		}
		if(s[i]==79&&s[i+1]>57)
		num+=o;
		
		if(s[i]==78&&s[i+1]<58&&s[i+1]>47)
		{
			num+=n*(s[i+1]-48);
			i++;
		}
		if(s[i]==78&&s[i+1]>57)
		num+=n;
	}
	printf("%d",num);
	return 0;
}