#include <bits/stdc++.h>
#define fastio ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL)
#define debug(x) cout << "Line " << __LINE__ << ", " << #x << " is " << x << endl
#define fi first
#define se second
#define mp make_pair
#define pb push_back
#define ll long long
#define ull unsigned long long
#define pii pair<int, int>
#define pll pair<ll, ll>
#define ld long double
#define nl '\n'
#define tb '\t'
#define sp ' '
using namespace std;
const int MX=500005, MOD=998244353, BLOCK=327, INF=1e9+7;
const ll INFF=1e18+7;
const ld ERR=1e-7, pi=3.14159265358979323846;
ll N, ans=INFF, A, B, tot, pref[MX], suff, DP[MX];
int main(){
fastio;
cin >> N;
for(int i=1; i<=N; i++){
cin >> A >> B;
pref[i]=pref[i-1]+A-B;
DP[i]=DP[i-1]+abs(pref[i]);
}
for(int i=N; i>0; i--){
suff+=abs(pref[i]-1);
ans=min(ans, DP[i-1]+suff);
}
cout << ans << nl;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
0 ms |
308 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
0 ms |
308 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
0 ms |
308 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
0 ms |
308 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
0 ms |
308 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |