백준 1002번 터렛

coding_problem/baekjoon_1002.cpp

@@ -0,0 +1,34 @@
+#include <iostream>
+using namespace std;
+int sol( int x1, int y1, int r1, int x2, int y2, int r2 ){
+	if( x1 == x2 && y1 == y2 && r1 == r2 )return -1;
+
+	int dx = x1 - x2;
+	int dy = y1 - y2;
+	int dp = dx*dx + dy*dy;
+	int addr = r1*r1 + ( 2*r1*r2 ) + r2*r2;
+	int disr = r1*r1 - ( 2*r1*r2 ) + r2*r2;
+
+	if( dp < disr ) return 0;
+
+	if( dp == disr ) return 1;
+
+	if( dp > disr && dp < addr ) return 2;
+
+	if( dp == addr ) return 1;
+
+	if( dp > addr ) return  0; 
+
+	else return 0;
+}
+int main( void ){
+	int T;
+	cin >> T;
+
+	for( int t = 0; t < T; t++ ){
+		int x1,y1,r1,x2,y2,r2;
+		cin >> x1 >> y1 >> r1 >> x2 >> y2 >> r2 ;
+		cout << sol( x1, y1, r1, x2, y2, r2 ) << "\n";
+	} 
+
+}