Submission #895174

#TimeUsernameProblemLanguageResultExecution timeMemory
895174hariaakas646Group Photo (JOI21_ho_t3)C++14
0 / 100
0 ms348 KiB
#include <bits/stdc++.h> using namespace std; #define scd(t) scanf("%d", &t) #define sclld(t) scanf("%lld", &t); #define forr(i, l, r) for(int i=l; i<r; i++) #define frange(i, l) forr(i, 0, l) #define pb push_back #define mp make_pair #define f first #define s second #define all(x) x.begin(), x.end() typedef vector<int> vi; typedef pair<int, int> pii; typedef vector<pii> vii; typedef long long lli; typedef vector<vi> vvi; typedef vector<lli> vll; typedef vector<bool> vb; void usaco() { freopen("/media/hariaakash646/785EF1075EF0BF46/CompetitiveProgramming/input.in", "r", stdin); } int main() { // usaco(); int n; scd(n); vi vec(n); vi pos(n); frange(i, n) { scd(vec[i]); vec[i]--; pos[vec[i]] = i; } vector<vi> dp(1<<n, vi(n, 1e9)); // forr(i, 1, 1<<n) { // frange(j, n) { // if(i & (1<<j)) { // if(__builtin_popcount(i) == 1) dp[i][j] = pos[j]; // int k = i ^ (1<<j); // frange(l, n) { // if(k & (1<<l)) { // if(vec[j] + 2 > vec[l]) { // dp[i][j] = min(dp[i][j], dp[k][l] + abs(pos[j] - __builtin_popcount(k))); // } // } // } // } // } // } sort(all(vec)); int mi = 1e9; do { int tot = 0; frange(i, n) tot += abs(vec[i] - pos[vec[i]]); mi = min(mi, tot); } while(next_permutation(all(vec))); printf("%d\n", mi/2); }

Compilation message (stderr)

Main.cpp: In function 'void usaco()':
Main.cpp:24:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   24 |  freopen("/media/hariaakash646/785EF1075EF0BF46/CompetitiveProgramming/input.in", "r", stdin);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp: In function 'int main()':
Main.cpp:5:21: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    5 | #define scd(t) scanf("%d", &t)
      |                ~~~~~^~~~~~~~~~
Main.cpp:30:2: note: in expansion of macro 'scd'
   30 |  scd(n);
      |  ^~~
Main.cpp:5:21: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    5 | #define scd(t) scanf("%d", &t)
      |                ~~~~~^~~~~~~~~~
Main.cpp:35:3: note: in expansion of macro 'scd'
   35 |   scd(vec[i]);
      |   ^~~
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