static int findMissingNumber(int start, int end, List<Integer> list) {
int sum = (start + end) * (end - start + 1) / 2;
for (Integer n : list) {
sum -= n;
}
return sum;
Sign in to make a reply
可姆可汗
static int findMissingNumber(int start, int end, List<Integer> list) {
int sum = (start + end) * (end - start + 1) / 2;
for (Integer n : list) {
sum -= n;
}
return sum;
}