Submission #668332

#	Time	Username	Problem	Language	Result	Execution time	Memory
668332		birthdaycake	Gap (APIO16_gap)	C++17	0 / 100	51 ms	3272 KiB

gap

#include "gap.h"
#include<bits/stdc++.h>
using namespace std;
const int maxn = 1e18;

long long findGap(int T, int N){
    long long l = 0, r = 0, mn = 0, mx = 0;
    MinMax(1, maxn, &mn, &mx);
    l = mn; r = mx;
    long long sz = (r - l + 1) / (N - 1), j = 0;
    vector<pair<long long,long>>d;
    for(j = l; j <= r; j += sz+1){
        MinMax(j, j + sz, &mn, &mx);
        d.push_back({mn, mx});
    }
    MinMax(j, r, &mn, &mx);
    d.push_back({mn, mx});
    long long ans = sz;
    mx = d[0].second;
    for(int i = 1; i < (int)d.size(); i++){
        if(d[i].first != -1){
            ans = max(ans, d[i].first - mx);
            mx = d[i].second;
        }
        
    }
    return ans;
}

Compilation message (stderr)

gap.cpp:4:18: warning: overflow in conversion from 'double' to 'int' changes value from '1.0e+18' to '2147483647' [-Woverflow]
    4 | const int maxn = 1e18;
      |                  ^~~~

• Subtask 1: 0 / 30
• Subtask 2: 0 / 70