Submission #337648

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
337648	2020-12-21 10:37:22	blue	Remittance (JOI19_remittance)	C++11	15 / 100	1 ms	492 KiB

remittance

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#include <iostream>
using namespace std;
/*
Let T[i] be the total number of yen transferred from i to i+1
A[i] - B[i] == 2*T[i] - T[i-1]
A[i+1] - B[i+1] == 2*T[i+1] - T[i]
T[i] = 2*T[i+1] + B[i+1] - A[i+1]
*/
long long N;
long long A[1000001];
long long B[1000001];
long long sumT = 0;
void b_search(long long l, long long r)
{
    //cout << l << ' ' << r << '\n';
    if(l == r)
     {
        long long temp = r;
        long long S = r;
        //cout << r << ' ';
        for(long long i = N-1; i >= 1; i--)
        {
            temp = 2*temp + B[i+1] - A[i+1];
            if(temp < 0)
            {
                cout << "No\n";
                return;
 
 
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• Subtask 1: 15 / 15
• Subtask 2: 0 / 40
• Subtask 3: 0 / 45