国产探花免费观看_亚洲丰满少妇自慰呻吟_97日韩有码在线_资源在线日韩欧美_一区二区精品毛片,辰东完美世界有声小说,欢乐颂第一季,yy玄幻小说排行榜完本

首頁 > 學(xué)院 > 開發(fā)設(shè)計(jì) > 正文

相同的雪花

2019-11-14 10:32:53
字體:
供稿:網(wǎng)友

相同的雪花

時(shí)間限制:1000 ms  |  內(nèi)存限制:65535 KB難度:4描述 You may have heard that no two snowflakes are alike. Your task is to write a PRogram to determine whether this is really true. Your program will read information about a collection of snowflakes, and search for a pair that may be identical. Each snowflake has six arms. For each snowflake, your program will be provided with a measurement of the length of each of the six arms. Any pair of snowflakes which have the same lengths of corresponding arms should be flagged by your program as possibly identical.輸入The first line of the input will contain a single interger T(0<T<10),the number of the test cases.The first line of every test case will contain a single integer n, 0 < n ≤ 100000, the number of snowflakes to follow. This will be followed by n lines, each describing a snowflake. Each snowflake will be described by a line containing six integers (each integer is at least 0 and less than 10000000), the lengths of the arms of the snow ake. The lengths of the arms will be given in order around the snowflake (either clockwise or counterclockwise), but they may begin with any of the six arms. For example, the same snowflake could be described as 1 2 3 4 5 6 or 4 3 2 1 6 5.輸出For each test case,if all of the snowflakes are distinct, your program should print the message:No two snowflakes are alike.If there is a pair of possibly identical snow akes, your program should print the message:Twin snowflakes found.樣例輸入
121 2 3 4 5 64 3 2 1 6 5樣例輸出
Twin snowflakes found.

解題報(bào)告:Hash算法的簡(jiǎn)單應(yīng)用。對(duì)arms和Hash下就行了。

code:

#include<iostream>#include<stdio.h>#include<queue>#include<vector>#include<stack>#include<cstring>#include<algorithm>using namespace std;typedef long long ll;const int maxn=100005;const int gcd=100000;int snow[maxn][6];  //存雪花arms值vector<int> v[maxn]; //存相同arms和的雪花bool deal(int a,int b){  //比較兩個(gè)雪花是否相同    for(int i=0;i<6;i++){        if(           (snow[a][0]==snow[b][i] &&      //順時(shí)針比較           snow[a][1]==snow[b][(i+1)%6] &&           snow[a][2]==snow[b][(i+2)%6] &&           snow[a][3]==snow[b][(i+3)%6] &&           snow[a][4]==snow[b][(i+4)%6] &&           snow[a][5]==snow[b][(i+5)%6])            ||           (snow[a][0]==snow[b][i] &&      //逆時(shí)針比較           snow[a][1]==snow[b][(i+5)%6] &&           snow[a][2]==snow[b][(i+4)%6] &&           snow[a][3]==snow[b][(i+3)%6] &&           snow[a][4]==snow[b][(i+2)%6] &&           snow[a][5]==snow[b][(i+1)%6])           )            return true;    }    return false;}int main(){  //  freopen("input.txt","r",stdin);    int t,n;    scanf("%d",&t);    while(t--){        memset(snow,0,sizeof(snow));        for(int i=0;i<maxn;i++){ //初始化            v[i].clear();        }        scanf("%d",&n);        for(int i=0;i<n;i++){            int sum=0;            for(int j=0;j<6;j++){                scanf("%d",&snow[i][j]);                sum+=snow[i][j];            }            sum=sum%gcd;            v[sum].push_back(i);        }        int flag=0;  //默認(rèn)無相同雪花        for(int i=0;i<maxn;i++){            if(flag)                break;            if(v[i].size()>=2){                for(int j=0;j<v[i].size()-1;j++){                    for(int k=j+1;k<v[i].size();k++){                        if(deal(v[i][j],v[i][k])){                            flag=1;                            break;                        }                    }                }            }        }        if(!flag)            printf("No two snowflakes are alike./n");        else            printf("Twin snowflakes found./n");    }    return 0;}


發(fā)表評(píng)論 共有條評(píng)論
用戶名: 密碼:
驗(yàn)證碼: 匿名發(fā)表
主站蜘蛛池模板: 康保县| 新建县| 女性| 元江| 邮箱| 二手房| 策勒县| 银川市| 上饶县| 瓮安县| 泰顺县| 南澳县| 陕西省| 屏东市| 景宁| 图木舒克市| 昌吉市| 岫岩| 靖西县| 当阳市| 乌拉特前旗| 江西省| 泽普县| 贵港市| 浦东新区| 凉山| 房产| 辰溪县| 长子县| 嵊泗县| 阳山县| 宕昌县| 凤山市| 兴义市| 八宿县| 溆浦县| 屯昌县| 治多县| 九龙县| 沭阳县| 马公市|