{"id":52,"date":"2009-12-12T21:30:00","date_gmt":"2009-12-12T13:30:00","guid":{"rendered":"http:\/\/localhost\/?p=52"},"modified":"2009-12-12T21:30:00","modified_gmt":"2009-12-12T13:30:00","slug":"mipt_005","status":"publish","type":"post","link":"https:\/\/www.shuizilong.com\/wjmzbmr\/?p=52","title":{"rendered":"mipt 005"},"content":{"rendered":"

\u6ca1\u4ec0\u4e48\u597d\u8bf4\u7684\u3002\u3002\u76f4\u63a5\u6a21\u62df\u3002\u3002
(\uff1a\u52a0\u6df11\u5c42\uff0c
)\uff1a\u964d\u4f4e1\u5c42
\u6570\u5b57\uff1a \u53f6\u5b50
\u76f4\u63a5\u7b97\u5c31OK\u4e86\u3002\u3002
\u6ce8\u610f\u4e00\u4e0bcin.peek()\u53ef\u80fd\u4f1a\u6709\u7528\uff0c\u5b83\u7684\u4f5c\u7528\u662f\u8bfb\u4e0b\u4e00\u4e2a\u4f46\u4e0d\u5220\u9664\uff0c
\u53ef\u4ee5\u7528\u6765\u5224\u65ad\u662f\u5426\u662f'(‘\u548c’)’\u3002\u3002
#include<cstdio>
#include<utility>
#include<vector>
#include<algorithm>
#include<iostream>
#include<set>
#include<cstdlib>
using namespace std;
double pow[1000];
int main()
{
pow[0]=1;
for(int i=1;i<1000;i++)
pow[i]=pow[i-1]\/2;
int cnt=0;double ans=0,x;
while(true)
{
while(cin.peek()==’ ‘)
cin.get();
if(cin.peek()=='(‘)
cnt++,cin.get();
else
{
if(cin.peek()==’)’)
cnt–,cin.get();
else
cin>>x,ans+=x*pow[cnt];
}
if(!cnt) break;
}
cout<\/a>.setf(ios::fixed);
cout<\/a>.precision(2);
cout<<ans<<endl;
} <\/p>\n","protected":false},"excerpt":{"rendered":"

\u6ca1\u4ec0\u4e48\u597d\u8bf4\u7684\u3002\u3002\u76f4\u63a5\u6a21\u62df\u3002\u3002(\uff1a\u52a0\u6df11\u5c42\uff0c)\uff1a\u964d\u4f4e1\u5c42\u6570\u5b57\uff1a \u53f6\u5b50\u76f4\u63a5\u7b97\u5c31OK\u4e86\u3002\u3002\u6ce8\u610f\u4e00\u4e0bcin.peek()\u53ef\u80fd\u4f1a\u6709\u7528\uff0c\u5b83\u7684\u4f5c\u7528\u662f\u8bfb\u4e0b\u4e00\u4e2a\u4f46\u4e0d\u5220\u9664\uff0c\u53ef\u4ee5\u7528\u6765\u5224\u65ad\u662f\u5426\u662f'(‘\u548c’)’\u3002\u3002#include<cstdio>#include<utility>#include<vector>#include<algorithm>#include<iostream>#include<set>#include<cstdlib>using namespace std;double pow[1000];int main(){ pow[0]=1; for(int i=1;i<1000;i++) pow[i]=pow[i-1]\/2; int cnt=0;double ans=0,x; while(true) { while(cin.peek()==’ ‘) cin.get(); if(cin.peek()=='(‘) cnt++,cin.get(); else { if(cin.peek()==’)’) cnt–,cin.get(); else cin>>x,ans+=x*pow[cnt]; } if(!cnt) break; } cout.setf(ios::fixed); cout.precision(2); cout<<ans<<endl;}<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[10],"tags":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=\/wp\/v2\/posts\/52"}],"collection":[{"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=52"}],"version-history":[{"count":0,"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=\/wp\/v2\/posts\/52\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=52"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=52"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=52"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}