ZOJ2971 Give Me the Number 【模拟】

这道题目使用Map。 然后一次性遍历下来即可。 QAQ

注意初始化的时候小心点不要错..

 

Source Code:

//#pragma comment(linker, "/STACK:16777216") //for c++ Compiler

#include <stdio.h>

#include <iostream>

#include <fstream>

#include <cstring>

#include <cmath>

#include <stack>

#include <string>

#include <map>

#include <set>

#include <list>

#include <queue>

#include <vector>

#include <algorithm>

#define Max(a,b) (((a) > (b)) ? (a) : (b))

#define Min(a,b) (((a) < (b)) ? (a) : (b))

#define Abs(x) (((x) > 0) ? (x) : (-(x)))

#define MOD 1000000007

#define pi acos(-1.0)



using namespace std;



typedef long long           ll      ;

typedef unsigned long long  ull     ;

typedef unsigned int        uint    ;

typedef unsigned char       uchar   ;



template<class T> inline void checkmin(T &a,T b){if(a>b) a=b;}

template<class T> inline void checkmax(T &a,T b){if(a<b) a=b;}



const double eps = 1e-7      ;

const int N = 210            ;

const int M = 1100011*2      ;

const ll P = 10000000097ll   ;

const int MAXN = 100000      ;

const int INF = 0x3f3f3f3f   ;

const int MAX = 10500        ;



map <string, int> g;



void init(){

    g["zero"] = 0, g["one"] = 1, g["two"] = 2, g["three"] = 3, g["four"] = 4;

    g["five"] = 5, g["six"] = 6, g["seven"] = 7, g["eight"] = 8, g["nine"] = 9;

    g["ten"] = 10, g["eleven"] = 11, g["twelve"] = 12, g["thirteen"] = 13, g["fourteen"] = 14;

    g["fifteen"] = 15, g["sixteen"] = 16, g["seventeen"] = 17, g["eighteen"] = 18, g["nineteen"] = 19;

    g["twenty"] = 20, g["thirty"] = 30, g["forty"] = 40, g["fifty"] = 50, g["sixty"] = 60;

    g["seventy"] = 70, g["eighty"] = 80, g["ninety"] = 90;

}



int main(){

    std::ios::sync_with_stdio(false);

    int i, j, t, k, u, v, x, y, numCase = 0;

    init();

    cin >> t;

    cin.get();//

    while(t--){

        string ss;

        getline(cin, ss, '\n');//

        ss += ' ';

        int len = ss.length();

        int num = 0, cur = 0, ans = 0;

        for(i = 0; i < len; ++i){

            if(ss[i] == ' '){

                string str = ss.substr(num, i - num);

                num = i + 1;

                if(str == "and"){

                    continue;

                } else if(str == "million"){

                    cur *= 1000000;

                    ans += cur;

                    cur = 0;

                } else if(str == "thousand"){

                    cur *= 1000;

                    ans += cur;

                    cur = 0;

                } else if(str == "hundred"){

                    cur *= 100;

                } else{

                    cur += g[str];

                }

            }

        }

        ans += cur;

        cout << ans << endl;

    }



    return 0;

}