#include#include using namespace std; int main() { int num[3]; while(scanf("%d %d %d",&num[0],&num[1],&num[2])==3) { for(int i=0; i<2; i++) { for(int j=0; j<2-i; j++) { if(num[j]>num[j+1]) { int temp = num[j]; num[j] = num[j+1]; num[j+1] = temp; } } } if(num[0]*num[0] + num[1]*num[1] == num[2]*num[2]) cout << "直角三角形" << endl; else if(num[0]*num[0] + num[1]*num[1] > num[2]*num[2]) cout << "锐角三角形" << endl; else if(num[0]*num[0] + num[1]*num[1] < num[2]*num[2]) cout << "钝角三角形" << endl; } return 0; } /************************************************************** Problem: 1048 User: liuguiyangnwpu Language: C++ Result: Accepted Time:10 ms Memory:1512 kb ****************************************************************/