Run ID 作者 问题 语言 测评结果 Time Memory 代码长度 提交时间
147955 王峻熙 寻找第二小的数 C++ Compile Error 0 MS 0 KB 987 2026-02-09 09:28:00

Tests(0/0):

Code:

#include <iostream> using namespace std; int findSecondSmallest(vector<int> numbers) { int smallest = numeric_limits<int>::max(); int secondSmallest = numeric_limits<int>::max(); for (int num : numbers) { if (num < smallest) { secondSmallest = smallest; smallest = num; } else if (num < secondSmallest && num != smallest) { secondSmallest = num; } } if (secondSmallest == numeric_limits<int>::max()) { return -1; } return secondSmallest; } int main() { int C; cin >> C; for (int i = 0; i < C; i++) { int n; cin >> n; vector<int> numbers(n); for (int j = 0; j < n; j++) { cin >> numbers[j]; } int result = findSecondSmallest(numbers); if (result == -1) { cout << "NO" << endl; } else { cout << result << endl; } } return 0; }

Run Info:

Main.cc:4:24: error: 'vector' was not declared in this scope
 int findSecondSmallest(vector numbers) {
                        ^
Main.cc:4:31: error: expected primary-expression before 'int'
 int findSecondSmallest(vector numbers) {
                               ^
Main.cc:4:45: error: expected ',' or ';' before '{' token
 int findSecondSmallest(vector numbers) {
                                             ^