Submission #154803

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
154803	2019-09-24 17:55:47	Akashi	Strange Device (APIO19_strange_device)	C++14	10 / 100	2703 ms	16548 KiB

strange_device

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#include <bits/stdc++.h>
using namespace std;
struct interv{
    long long l, r;
    bool operator < (const interv &aux)const{
        if(l != aux.l) return l < aux.l;
        return r < aux.r;
    }
};
interv a[2000005];
int n;
long long A, B;
int main()
{
    cin >> n >> A >> B;
    double lg1 = log2((double)A), lg2 = log2((double)B);
    long long prod = 0;
    if(lg1 + lg2 <= 63) prod = 1LL * A * B;
    int m = n;
    for(int i = 1; i <= n ; ++i){
        cin >> a[i].l >> a[i].r;
        if(prod != 0){
            if(a[i].r - a[i].l + 1 >= prod){
                a[i].l = 0; a[i].r = prod - 1;
 
 
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