// One-star problem // Problem 11342 Three-Square /* This program is written by Prof. Chua-Huang Huang Department of Information Engineering and Computer Science Feng Chia University Taichung, Taiwan Disclaimer: The programming problem is downloaded from UVa Online Judge (https://uva.onlinejudge.org/). The program solution is provided for helping students to prepare Collegiate Programming Examination (CPE). The author does not guarantee the program is completely correct to pass UVa Online Judge platform or CPE examination platform. This program is not intended for a student to copy only. He/She should practice the programming problem himself/herself. Only use the program solution as a reference. The author is not responsible if the program causes any damage of your computer or personal properties. No commercial use of this program is allowed without the author's written permission. */ #include #include #include int main(void) { int cases; // Number of cases. int n; // Input integer n. int a, b, c; // a^2+b^2+c^2==n, if there is any. int found; // 1, if a , b, c are found; 0, otherwise. int r, i, j, k; // Loop variable. scanf("%d", &cases); // Input number of cases. for (r=0; r=0 && !found; i--) { // Cotinue to try if not found. // The maximum value of possible b is (int)sqrt(n-i*i). for (j=(int)sqrt(n-i*i); j>=0 && !found; j--) { // Cotinue to try if not found. k = (int) sqrt(n - i * i - j *j); // Possible a. if (n== i * i + j * j + k * k) { // The three squares are found. a = k; b = j; c = i; found = 1; } } } if (found) printf("%d %d %d\n", a, b, c); // Found, output the three squares. else printf("-1\n"); // Not found, ouput -1. } return 0; }