func_code_string: #include <bits/stdc++.h>   using namespace std;   inline long long read() {     long long x = 0;     bool f = false;     char c = getchar();     while (c <  0  || c >  9 ) {       if (c ==  - ) f = true;       c = getchar();     }     while (c >=  0  && c <=  9 ) {       x = (x << 3) + (x << 1) + (c ^  0 );       c = getchar();     }     return f ? -x : x;   }   inline void write(long long x) {     if (x < 0) putchar( - ), x = -x;     if (x > 9) write(x / 10);     putchar(x % 10 +  0 );   }   long long n, k, a[101], b[101][101], ans, cnt1, cnt2;   signed main() {     n = read();     k = read();     for (register long long i = 0; i < n; ++i)       a[i] = read(), b[i / k][i % k] = a[i];     for (register long long i = 0; i < k; ++i) {       cnt1 = cnt2 = 0;       for (register long long j = 0; j < n / k; ++j)         b[j][i] == 1 ? ++cnt1 : ++cnt2;       ans += min(cnt1, cnt2);     }     cout << ans;     return 0;   }   