#include <bits/stdc++.h>
using namespace std;
template <class T>
inline bool mnto(T& a, T b) {return a > b ? a = b, 1 : 0;}
template <class T>
inline bool mxto(T& a, T b) {return a < b ? a = b, 1: 0;}
#define REP(i, s, e) for (int i = s; i < e; i++)
#define RREP(i, s, e) for (int i = s; i >= e; i--)
typedef long long ll;
typedef long double ld;
#define MP make_pair
#define FI first
#define SE second
typedef pair<int, int> ii;
typedef pair<ll, ll> pll;
#define MT make_tuple
typedef tuple<int, int, int> iii;
#define ALL(_a) _a.begin(), _a.end()
#define pb push_back
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<ii> vii;
#ifdef DEBUG
#define debug(args...) _debug(args)
void _debug(const char* format, ...) {
va_list args;
va_start(args, format);
vprintf(format, args);
va_end(args);
}
#else
#define debug(args...)
#endif
#define INF 1000000005
#define LINF 1000000000000000005
#define MOD 1000000007
#define MAXN 200005
int n;
int a[MAXN];
ll psum[MAXN], nsum[MAXN];
int main() {
scanf("%d", &n);
REP (i, 1, n + 1) {
scanf("%d", &a[i]);
int diff = a[i] - a[i - 1];
psum[i] = psum[i - 1];
nsum[i] = nsum[i - 1];
if (diff >= 0) {
psum[i] += diff + 1;
}
if (diff <= 0) {
nsum[i] -= diff - 1;
}
debug("%d: %d\n", i, diff);
}
ll ans = LINF;
REP (i, 1, n + 1) {
ll l = nsum[i], r = psum[n] - psum[i];
debug("%d: %lld %lld\n", i, l, r);
mnto(ans, max(l, r));
}
printf("%lld\n", ans);
return 0;
}
Compilation message
Main.cpp: In function 'int main()':
Main.cpp:47:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
47 | scanf("%d", &n);
| ~~~~~^~~~~~~~~~
Main.cpp:49:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
49 | scanf("%d", &a[i]);
| ~~~~~^~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
204 KB |
Output is correct |
| 2 |
Correct |
0 ms |
204 KB |
Output is correct |
| 3 |
Correct |
1 ms |
204 KB |
Output is correct |
| 4 |
Correct |
1 ms |
204 KB |
Output is correct |
| 5 |
Correct |
1 ms |
332 KB |
Output is correct |
| 6 |
Correct |
1 ms |
332 KB |
Output is correct |
| 7 |
Correct |
1 ms |
332 KB |
Output is correct |
| 8 |
Correct |
1 ms |
332 KB |
Output is correct |
| 9 |
Correct |
1 ms |
332 KB |
Output is correct |
| 10 |
Correct |
1 ms |
332 KB |
Output is correct |
| 11 |
Correct |
1 ms |
332 KB |
Output is correct |
| 12 |
Correct |
1 ms |
332 KB |
Output is correct |
| 13 |
Correct |
1 ms |
332 KB |
Output is correct |
| 14 |
Correct |
1 ms |
332 KB |
Output is correct |
| 15 |
Correct |
1 ms |
332 KB |
Output is correct |
| 16 |
Correct |
1 ms |
332 KB |
Output is correct |
| 17 |
Correct |
1 ms |
332 KB |
Output is correct |
| 18 |
Correct |
1 ms |
332 KB |
Output is correct |
| 19 |
Correct |
1 ms |
332 KB |
Output is correct |
| 20 |
Correct |
1 ms |
332 KB |
Output is correct |
| 21 |
Correct |
1 ms |
332 KB |
Output is correct |
| 22 |
Correct |
1 ms |
332 KB |
Output is correct |
| 23 |
Correct |
1 ms |
332 KB |
Output is correct |
| 24 |
Correct |
1 ms |
332 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
204 KB |
Output is correct |
| 2 |
Correct |
0 ms |
204 KB |
Output is correct |
| 3 |
Correct |
1 ms |
204 KB |
Output is correct |
| 4 |
Correct |
1 ms |
204 KB |
Output is correct |
| 5 |
Correct |
1 ms |
332 KB |
Output is correct |
| 6 |
Correct |
1 ms |
332 KB |
Output is correct |
| 7 |
Correct |
1 ms |
332 KB |
Output is correct |
| 8 |
Correct |
1 ms |
332 KB |
Output is correct |
| 9 |
Correct |
1 ms |
332 KB |
Output is correct |
| 10 |
Correct |
1 ms |
332 KB |
Output is correct |
| 11 |
Correct |
1 ms |
332 KB |
Output is correct |
| 12 |
Correct |
1 ms |
332 KB |
Output is correct |
| 13 |
Correct |
1 ms |
332 KB |
Output is correct |
| 14 |
Correct |
1 ms |
332 KB |
Output is correct |
| 15 |
Correct |
1 ms |
332 KB |
Output is correct |
| 16 |
Correct |
1 ms |
332 KB |
Output is correct |
| 17 |
Correct |
1 ms |
332 KB |
Output is correct |
| 18 |
Correct |
1 ms |
332 KB |
Output is correct |
| 19 |
Correct |
1 ms |
332 KB |
Output is correct |
| 20 |
Correct |
1 ms |
332 KB |
Output is correct |
| 21 |
Correct |
1 ms |
332 KB |
Output is correct |
| 22 |
Correct |
1 ms |
332 KB |
Output is correct |
| 23 |
Correct |
1 ms |
332 KB |
Output is correct |
| 24 |
Correct |
1 ms |
332 KB |
Output is correct |
| 25 |
Correct |
1 ms |
332 KB |
Output is correct |
| 26 |
Correct |
32 ms |
6012 KB |
Output is correct |
| 27 |
Correct |
33 ms |
6056 KB |
Output is correct |
| 28 |
Correct |
30 ms |
6084 KB |
Output is correct |
| 29 |
Correct |
31 ms |
6224 KB |
Output is correct |
| 30 |
Correct |
26 ms |
5432 KB |
Output is correct |
| 31 |
Correct |
30 ms |
6052 KB |
Output is correct |
| 32 |
Correct |
30 ms |
6084 KB |
Output is correct |
| 33 |
Correct |
30 ms |
6036 KB |
Output is correct |
| 34 |
Correct |
30 ms |
6092 KB |
Output is correct |
| 35 |
Correct |
24 ms |
5320 KB |
Output is correct |
| 36 |
Correct |
25 ms |
5448 KB |
Output is correct |
| 37 |
Correct |
25 ms |
5452 KB |
Output is correct |
| 38 |
Correct |
29 ms |
6092 KB |
Output is correct |
| 39 |
Correct |
30 ms |
6104 KB |
Output is correct |
| 40 |
Correct |
30 ms |
6076 KB |
Output is correct |
| 41 |
Correct |
30 ms |
6008 KB |
Output is correct |
| 42 |
Correct |
28 ms |
5828 KB |
Output is correct |
| 43 |
Correct |
30 ms |
6056 KB |
Output is correct |
| 44 |
Correct |
29 ms |
6084 KB |
Output is correct |
| 45 |
Correct |
30 ms |
6040 KB |
Output is correct |
| 46 |
Correct |
33 ms |
6120 KB |
Output is correct |
| 47 |
Correct |
30 ms |
6084 KB |
Output is correct |
| 48 |
Correct |
30 ms |
6152 KB |
Output is correct |
