Submission #958743

#TimeUsernameProblemLanguageResultExecution timeMemory
958743hariaakas646K blocks (IZhO14_blocks)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, j, k) for (int i = j; i < k; i++) #define frange(i, j) forr(i, 0, j) #define all(cont) cont.begin(), cont.end() #define mp make_pair #define pb push_back #define f first #define s second typedef long long int lli; typedef pair<int, int> pii; typedef vector<int> vi; typedef vector<bool> vb; typedef vector<lli> vll; typedef vector<string> vs; typedef vector<pii> vii; typedef vector<vi> vvi; typedef map<int, int> mpii; typedef set<int> seti; typedef multiset<int> mseti; typedef long double ld; void usaco() { freopen("/media/hariaakash646/785EF1075EF0BF46/CompetitiveProgramming/input.in", "r", stdin); // freopen("problem.out", "w", stdout); } int main() { // usaco(); int n, k; scd(n); scd(k); vll vec(n+1); forr(i, 1, n+1) sclld(vec[i]); vector<vll> dp(k+1, vll(n+1, 1e17)); dp[0][0] = 0; forr(i, 1, k+1) { stack<int> stk; stk.push(0); lli mi = 1e17; forr(j, 1, n+1) { while(stk.size() && vec[j] > vec[stk.top()]) { mi = min(mi, dp[i-1][stk.top()]); stk.pop(); } dp[i][j] = mi + vec[j]; if(stk.size()) dp[i][j] = min(dp[i][j], dp[i][stk.top()]); stk.push(j); } } printf("%lld", dp[k][n]); }

Compilation message (stderr)

blocks.cpp: In function 'void usaco()':
blocks.cpp:29:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   29 |     freopen("/media/hariaakash646/785EF1075EF0BF46/CompetitiveProgramming/input.in", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
blocks.cpp: In function 'int main()':
blocks.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)
      |                ~~~~~^~~~~~~~~~
blocks.cpp:36:5: note: in expansion of macro 'scd'
   36 |     scd(n);
      |     ^~~
blocks.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)
      |                ~~~~~^~~~~~~~~~
blocks.cpp:37:5: note: in expansion of macro 'scd'
   37 |     scd(k);
      |     ^~~
blocks.cpp:6:23: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    6 | #define sclld(t) scanf("%lld", &t)
      |                  ~~~~~^~~~~~~~~~~~
blocks.cpp:39:21: note: in expansion of macro 'sclld'
   39 |     forr(i, 1, n+1) sclld(vec[i]);
      |                     ^~~~~
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