Submission #895972

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
895972	2023-12-31 09:04:38	omsincoconut	Potatoes and fertilizers (LMIO19_bulves)	C++17	0 / 100	1 ms	2396 KiB

bulves

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#include <bits/stdc++.h>
using namespace std;
typedef long long int lli;
typedef long double ld;
typedef pair<ld, ld> pld;
typedef pair<lli, lli> pll;
#define mp(x, y) make_pair(x, y)
const lli MAXN = 5e5+5;
lli N;
lli a[MAXN], b[MAXN];
int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cin >> N;
    for (lli i = 0; i < N; i++) cin >> a[i] >> b[i];
    lli c[N];
    for (lli i = 0; i < N; i++) c[i] = a[i] - b[i];
    lli ans = 0;
    for (lli i = 0; i < N; i++) {
        ans += c[i] + c[N-i-1];
        if (i+1 < N) c[i+1] += c[i];
        if (N-i-2 > 0) c[N-i-2] += c[N-i-1];
    }
 
 
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