Submission #339870

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
339870	2020-12-26 10:19:27	Vladikus004	Mountain Trek Route (IZhO12_route)	C++14	0 / 100	2 ms	364 KiB

route

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#include <bits/stdc++.h>
#define mp make_pair
#define pb push_back
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define inf 2e9
using namespace std;
typedef long long ll;
typedef pair <int, int> pii;
//#define int long long
const int N = 1000000 + 3;
int n, k, a[N], b[N], buff[N];
ll cnt[N];
ll solve(ll k){
    vector <int> st;
    for (int i = n - 1; i >= 0; i--)
        if (b[i] > 0) st.pb(i);
    for (int i = n - 1; i >= 0; i--){
        while (!st.empty() && b[st.back()] == 0) st.pop_back();
        if (b[i] > 0) st.push_back(i);
        if (b[i] < 0){
            while (b[i] < 0 && !st.empty()){
                int gt = min(-b[i], b[st.back()]);
                cnt[(st.back() + n - i) % n] += gt;
                b[st.back()] -= gt;
                b[i] += gt;
                while (!st.empty() && b[st.back()] == 0) st.pop_back();
            }
 
 
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Compilation message (stderr)

route.cpp: In function 'int32_t main()':
route.cpp:47:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   47 |     freopen("input.txt", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
route.cpp:48:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   48 |     freopen("output.txt", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 100