【HDU5984】Pocky(数学)

来源：互联网发布：泛突厥主义知乎编辑：程序博客网时间：2024/05/17 04:57

记录一个菜逼的成长。。

反正题意我还是没看懂。。
看来我得学一波猜数学公式，orz。。
一个经验，一个教训。

#pragma comment(linker, "/STACK:1024000000,1024000000")#include <cstdio>#include <iostream>#include <cstring>#include <string>#include <algorithm>#include <cstdlib>#include <vector>#include <set>#include <map>#include <queue>#include <stack>#include <list>#include <deque>#include <cctype>#include <bitset>#include <cmath>#include <cassert>using namespace std;#define ALL(v) (v).begin(),(v).end()#define cl(a,b) memset(a,b,sizeof(a))#define bp __builtin_popcount#define pb push_back#define mp make_pair#define fin freopen("D://in.txt","r",stdin)#define fout freopen("D://out.txt","w",stdout)#define lson t<<1,l,mid#define rson t<<1|1,mid+1,r#define seglen (node[t].r-node[t].l+1)#define pi 3.1415926#define exp  2.718281828459#define lowbit(x) (x)&(-x)typedef long long LL;typedef unsigned long long ULL;typedef pair<int,int> PII;typedef pair<LL,LL> PLL;typedef vector<PII> VPII;const int INF = 0x3f3f3f3f;const int MOD = 1e9 + 7;template <typename T>inline void read(T &x){    T ans=0;    char last=' ',ch=getchar();    while(ch<'0' || ch>'9')last=ch,ch=getchar();    while(ch>='0' && ch<='9')ans=ans*10+ch-'0',ch=getchar();    if(last=='-')ans=-ans;    x = ans;}int main(){    int T;    scanf("%d",&T);    while(T--){        double a,b;        scanf("%lf%lf",&a,&b);        if(a <= b){            puts("0.000000");            continue;        }        printf("%.6f\n",1+log(a/b));    }    return 0;}

0 0