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, '
');//
        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;
}