public static int makeUpComputer(int[] computers, int[] memory) { Arrays.sort(computers); Arrays.sort(memory); int index = 0; int count = 0; for (int i = 0; i < computers.length; i++) { // i：当前考察的电脑索引 for (int j = index; j < memory.length; j++) { // j：当前内存条索引 if (memory[j] >= computers[i]) { index = j+1; count++; break; } } } return count; }