new one

Author: VedRatan

chord.cpp

@@ -0,0 +1,75 @@
+#include <iostream>
+#include <string>
+using namespace std;
+
+string notes[] = { "C", "C#", "D", "D#", "E", "F", "F#", "G", "G#", "A", "B", "H" };
+
+int getindex(string s) {
+    for (int i = 0; i < 12; i++) {
+        if (notes[i] == s)
+            return i;
+    }
+    return 0;
+}
+
+string check (int index1, int index2, int index3){
+    int first_tones, second_tones, third_tones;
+    
+    if (index2 < index1) {
+        first_tones = index2 + 12 - index1;
+    }
+    else {
+        first_tones = index2 - index1;
+    }
+    if (index3 < index2) {
+        second_tones = index3 + 12 - index2;
+    }
+    else {
+        second_tones = index3 - index2;
+    }
+    
+    if (first_tones == 4 && second_tones == 3)
+        return "major";
+    
+    else if (first_tones == 3 && second_tones == 4)
+        return "minor";
+
+    else
+        return "strange";
+}
+
+
+int main() {
+    int index1, index2, index3;
+
+    string s1, s2, s3;
+    string s[6];
+    
+   
+    cin >> s1 >> s2 >> s3;
+    
+    
+    index1 = getindex(s1);
+    index2 = getindex(s2);
+    index3 = getindex(s3);
+    
+    
+    s[0] = check(index1, index2, index3);
+    s[1] = check(index1, index3, index2);
+    s[2] = check(index2, index1, index3);
+    s[3] = check(index2, index3, index1);
+    s[4] = check(index3, index1, index2);
+    s[5] = check(index3, index2, index1);
+    
+    int i = 0;
+    while(i < 6){
+        if(s[i] == "major" || s[i] == "minor"){
+            cout << s[i] << endl;
+            return 0;
+        }
+        i++;
+    }
+    
+    cout << "strange" << endl;
+    return 0;
+}