P2108 学英语 [50' Code]

problem/P2108/P2108.cpp

@@ -0,0 +1,66 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+int main() {
+    map<string, int> m;
+    string           s;
+    long long        ans = 0, now = 0;
+
+    m["one"]       = 1;
+    m["two"]       = 2;
+    m["three"]     = 3;
+    m["four"]      = 4;
+    m["five"]      = 5;
+    m["six"]       = 6;
+    m["seven"]     = 7;
+    m["eight"]     = 8;
+    m["nine"]      = 9;
+    m["ten"]       = 10;
+    m["eleven"]    = 11;
+    m["twelve"]    = 12;
+    m["thirteen"]  = 13;
+    m["fourteen"]  = 14;
+    m["fifteen"]   = 15;
+    m["sixteen"]   = 16;
+    m["seventeen"] = 17;
+    m["eighteen"]  = 18;
+    m["nineteen"]  = 19;
+    m["twenty"]    = 20;
+    m["thirty"]    = 30;
+    m["forty"]     = 40;
+    m["fifty"]     = 50;
+    m["sixty"]     = 60;
+    m["seventy"]   = 70;
+    m["eighty"]    = 80;
+    m["ninety"]    = 90;
+
+    while (cin >> s) {
+        if (s == "negative") {
+            cout << "-";
+        }
+        else if (s == "hundred") {
+            ans += now;
+            ans *= 100;
+            now = 0;
+        }
+        else if (s == "thousand") {
+            ans += now;
+            ans *= 1000;
+            now = 0;
+        }
+        else if (s == "million") {
+            ans += now;
+            ans *= 1000000;
+            now = 0;
+        }
+        else {
+            now += m[s];
+        }
+    }
+    if (now) {
+        ans += now;
+    }
+    cout << ans << endl;
+    return 0;
+}