四项一起对得上吗

运行下面这段程序：

#include <algorithm>
#include <iostream>
#include <string>
#include <vector>
using namespace std;

long long fib_tab(int n) {
    if (n < 2) return n;
    vector<long long> dp(n + 1, 0);
    dp[1] = 1;
    for (int i = 2; i <= n; i++) {
        dp[i] = dp[i - 1] + dp[i - 2];
    }
    return dp[n];
}

vector<long long> climb(int n) {
    vector<long long> dp(n + 1, 0);
    dp[0] = 1;
    for (int i = 1; i <= n; i++) {
        dp[i] = dp[i - 1];
        if (i >= 2) dp[i] += dp[i - 2];
    }
    return dp;
}

vector<int> rob(const vector<int>& a) {
    vector<int> dp(a.size() + 1, 0);
    if (!a.empty()) dp[1] = a[0];
    for (size_t i = 2; i <= a.size(); i++) {
        dp[i] = max(dp[i - 1], dp[i - 2] + a[i - 1]);
    }
    return dp;
}

int max_sub(const vector<int>& a) {
    int best = a[0];
    int cur = a[0];
    for (size_t i = 1; i < a.size(); i++) {
        cur = max(a[i], cur + a[i]);
        best = max(best, cur);
    }
    return best;
}

int main() {
    bool ok = fib_tab(12) == 144 && climb(10)[10] == 89 && rob({2, 7, 9, 3, 1}).back() == 12 && max_sub({-2, 1, -3, 4, -1, 2, 1, -5, 4}) == 6;
    cout << boolalpha << ok << endl;
}

（本题用 g++ -std=c++17 -O0 编译。）