Submission #1095412

#	Time	Username	Problem	Language	Result	Execution time	Memory
1095412		KasymK	Bigger segments (IZhO19_segments)	C++17	37 / 100	9 ms	604 KiB

segments

#include "bits/stdc++.h"
using namespace std;
#define ff first
#define ss second
#define all(v) v.begin(), v.end()
#define ll long long
#define pb push_back
#define pii pair<int, int>
#define pli pair<ll, int>
#define pll pair<ll, ll>
#define tr(i, c) for(auto i = c.begin(); i != c.end(); ++i)
#define wr puts("----------------")
template<class T>bool umin(T& a,T b){if(a>b){a=b;return 1;}return 0;}
template<class T>bool umax(T& a,T b){if(a<b){a=b;return 1;}return 0;}
const int N = 3e3+5;
pli dp[N];
ll par[N];

int main(){
    int n;
    scanf("%d", &n);
    for(int i = 1; i <= n; ++i){
        int x;
        scanf("%d", &x);
        par[i] = par[i-1]+x;
    }
    dp[1] = {par[1], 1};
    for(int i = 1; i <= n; ++i)
        for(int j = i; j >= 1; --j)
            if(par[i]-par[j-1] >= dp[j-1].ff)
                if(umax(dp[i].ss, dp[j-1].ss+1))
                    dp[i].ff = par[i]-par[j-1];
    printf("%d\n", dp[n].ss);
    return 0;
}

Compilation message (stderr)

segments.cpp: In function 'int main()':
segments.cpp:21:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   21 |     scanf("%d", &n);
      |     ~~~~~^~~~~~~~~~
segments.cpp:24:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   24 |         scanf("%d", &x);
      |         ~~~~~^~~~~~~~~~

• Subtask 1: 13 / 13
• Subtask 2: 14 / 14
• Subtask 3: 10 / 10
• Subtask 4: 0 / 36
• Subtask 5: 0 / 27