Posted on 2009-03-28 17:10
superman 阅读(88)
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USACO
1 #include <iostream>
2
3 using namespace std;
4
5 int main()
6 {
7 freopen("preface.in", "r", stdin);
8 freopen("preface.out", "w", stdout);
9
10 int n;
11 cin >> n;
12
13 int I, V, X, L, C, D, M;
14 I = V = X = L = C = D = M = 0;
15
16 while (n)
17 {
18 int c = n--;
19 while (c)
20 {
21 if (c >= 1000) { c -= 1000, M++ ; continue; }
22 if (c >= 900 ) { c -= 900 , C++, M++; continue; }
23 if (c >= 500 ) { c -= 500 , D++ ; continue; }
24 if (c >= 400 ) { c -= 400 , C++, D++; continue; }
25 if (c >= 100 ) { c -= 100 , C++ ; continue; }
26 if (c >= 90 ) { c -= 90 , X++, C++; continue; }
27 if (c >= 50 ) { c -= 50 , L++ ; continue; }
28 if (c >= 40 ) { c -= 40 , X++, L++; continue; }
29 if (c >= 10 ) { c -= 10 , X++ ; continue; }
30 if (c >= 9 ) { c -= 9 , I++, X++; continue; }
31 if (c >= 5 ) { c -= 5 , V++ ; continue; }
32 if (c >= 4 ) { c -= 4 , I++, V++; continue; }
33 if (c >= 1 ) { c -= 1 , I++ ; continue; }
34 }
35 }
36
37 if (I) cout << 'I' << ' ' << I << endl;
38 if (V) cout << 'V' << ' ' << V << endl;
39 if (X) cout << 'X' << ' ' << X << endl;
40 if (L) cout << 'L' << ' ' << L << endl;
41 if (C) cout << 'C' << ' ' << C << endl;
42 if (D) cout << 'D' << ' ' << D << endl;
43 if (M) cout << 'M' << ' ' << M << endl;
44
45 return 0;
46 }
47