How to remove red "and" and "or" highlighting in VS Code?

Question

Visual Studio Code

Tried restarting Intellisense on the active file, reinstalling the C/C++ extension and VS Code itself, but didn't help. The red highlight disappears when I disable the extension, but no errors are highlighted after that. A quick fix suggests simply turning off error highlighting. I am attaching the list of installed extensions and code below.

int f1(int* a, int n, int b, int d) {
    int prod = 1;
    for (int i = 0; i < n; i++) {
        if (b <= a[i] and a[i] <= d) prod *= 1;
    }

    return prod;
}

int main() {

}