UVA - 10499 The Land of Justice

题目大意：求一个球被从球心分成N份后，表面积增加了多少

解题思路：分成两份就增加50%，分成4份就增加100%，归纳可得，增加了n*25%

#include<cstdio>int main() {long long number;while(scanf("%lld", &number)) {if(number < 0)break;if(number <= 1)printf("0%%\n");elseprintf("%lld%%\n", 25 * number);}return 0;}