| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 957851 |
2024-04-04T12:12:32 Z |
gaga999 |
Bomb (IZhO17_bomb) |
C++17 |
|
196 ms |
59288 KB |
// #pragma GCC optimize("Ofast,no-stack-protector")
// #pragma GCC optimize("O3,unroll-loops")
// #pragma GCC target("avx,avx2,bmi,bmi2,lzcnt,popcnt")
#include <bits/stdc++.h>
#define lowbit(x) ((x) & -(x))
#define ml(a, b) ((1ll * (a) * (b)) % M)
#define tml(a, b) (a) = ((1ll * (a) * (b)) % M)
#define ad(a, b) ((0ll + (a) + (b)) % M)
#define tad(a, b) (a) = ((0ll + (a) + (b)) % M)
#define mi(a, b) ((0ll + M + (a) - (b)) % M)
#define tmi(a, b) (a) = ((0ll + M + (a) - (b)) % M)
#define tmin(a, b) (a) = min((a), (b))
#define tmax(a, b) (a) = max((a), (b))
#define iter(a) (a).begin(), (a).end()
#define riter(a) (a).rbegin(), (a).rend()
#define init(a, b) memset((a), (b), sizeof(a))
#define cpy(a, b) memcpy((a), (b), sizeof(a))
#define uni(a) a.resize(unique(iter(a)) - a.begin())
#define size(x) (int)x.size()
#define pb emplace_back
#define mpr make_pair
#define ls(i) ((i) << 1)
#define rs(i) ((i) << 1 | 1)
#define INF 0x3f3f3f3f
#define NIF 0xc0c0c0c0
#define eps 1e-9
#define F first
#define S second
#define AC cin.tie(0)->sync_with_stdio(0)
using namespace std;
typedef long long llt;
typedef __int128_t lll;
typedef pair<int, int> pii;
typedef pair<double, double> pdd;
typedef pair<llt, llt> pll;
typedef complex<double> cd;
// const int M = 998244353;
// random_device rm;
// mt19937 rg(rm());
// default_random_engine rg(rm());
// uniform_int_distribution<int> rd(INT_MIN, INT_MAX);
// uniform_real_distribution<double> rd(0, M_PI);
void db() { cerr << "\n"; }
template <class T, class... U>
void db(T a, U... b) { cerr << a << " ", db(b...); }
inline char gc()
{
const static int SZ = 1 << 16;
static char buf[SZ], *p1, *p2;
if (p1 == p2 && (p2 = buf + fread(p1 = buf, 1, SZ, stdin), p1 == p2))
return -1;
return *p1++;
}
void rd() {}
template <typename T, typename... U>
void rd(T &x, U &...y)
{
x = 0;
bool f = 0;
char c = gc();
while (!isdigit(c))
f ^= !(c ^ 45), c = gc();
while (isdigit(c))
x = (x << 1) + (x << 3) + (c ^ 48), c = gc();
f && (x = -x), rd(y...);
}
template <typename T>
void prt(T x)
{
if (x < 0)
putchar('-'), x = -x;
if (x > 9)
prt(x / 10);
putchar((x % 10) ^ 48);
}
const int N = 2505;
char gd[N][N];
int up[N][N], dn[N][N], an[N];
signed main()
{
int n, m;
scanf("%d%d", &n, &m);
for (int i = 1; i <= n; i++)
scanf("%s", gd[i] + 1);
for (int j = 1; j <= m; j++)
{
for (int i = 1; i <= n; i++)
if (gd[i][j] == '1')
up[i][j] = up[i - 1][j] + 1;
for (int i = n; i > 0; i--)
if (gd[i][j] == '1')
dn[i][j] = dn[i + 1][j] + 1;
}
init(an, INF);
int mx = m;
for (int i = 1; i <= n; i++)
{
int m1 = INF, m2 = INF, cr = 0;
for (int j = 1; j <= m; j++)
{
if (gd[i][j] == '0')
{
m1 = m2 = INF;
if (cr)
tmin(mx, cr), cr = 0;
continue;
}
cr++, tmin(m1, up[i][j]), tmin(m2, dn[i][j]);
tmin(an[cr], m1 + m2 - 1);
tmin(an[1], up[i][j] + dn[i][j] - 1);
}
}
int ans = 0;
for (int i = 1; i <= mx; i++)
tmax(ans, an[i] * i), tmin(an[i + 1], an[i]);
prt(ans), putchar('\n');
}
Compilation message
bomb.cpp: In function 'int main()':
bomb.cpp:88:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
88 | scanf("%d%d", &n, &m);
| ~~~~~^~~~~~~~~~~~~~~~
bomb.cpp:90:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
90 | scanf("%s", gd[i] + 1);
| ~~~~~^~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2492 KB |
Output is correct |
| 3 |
Correct |
19 ms |
54364 KB |
Output is correct |
| 4 |
Correct |
8 ms |
54360 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 6 |
Incorrect |
1 ms |
2496 KB |
Output isn't correct |
| 7 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 8 |
Incorrect |
1 ms |
2496 KB |
Output isn't correct |
| 9 |
Incorrect |
1 ms |
2392 KB |
Output isn't correct |
| 10 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 11 |
Correct |
1 ms |
2648 KB |
Output is correct |
| 12 |
Incorrect |
1 ms |
2396 KB |
Output isn't correct |
| 13 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 14 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 15 |
Incorrect |
1 ms |
2396 KB |
Output isn't correct |
| 16 |
Incorrect |
1 ms |
2652 KB |
Output isn't correct |
| 17 |
Correct |
1 ms |
4700 KB |
Output is correct |
| 18 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 19 |
Incorrect |
1 ms |
4700 KB |
Output isn't correct |
| 20 |
Incorrect |
1 ms |
4700 KB |
Output isn't correct |
| 21 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 22 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 23 |
Incorrect |
1 ms |
4696 KB |
Output isn't correct |
| 24 |
Incorrect |
1 ms |
4804 KB |
Output isn't correct |
| 25 |
Incorrect |
1 ms |
4956 KB |
Output isn't correct |
| 26 |
Correct |
1 ms |
4956 KB |
Output is correct |
| 27 |
Correct |
3 ms |
11276 KB |
Output is correct |
| 28 |
Incorrect |
2 ms |
4956 KB |
Output isn't correct |
| 29 |
Incorrect |
4 ms |
10700 KB |
Output isn't correct |
| 30 |
Incorrect |
3 ms |
10332 KB |
Output isn't correct |
| 31 |
Correct |
2 ms |
7768 KB |
Output is correct |
| 32 |
Incorrect |
3 ms |
10076 KB |
Output isn't correct |
| 33 |
Incorrect |
4 ms |
10844 KB |
Output isn't correct |
| 34 |
Incorrect |
1 ms |
4956 KB |
Output isn't correct |
| 35 |
Incorrect |
2 ms |
7004 KB |
Output isn't correct |
| 36 |
Incorrect |
4 ms |
15196 KB |
Output isn't correct |
| 37 |
Incorrect |
1 ms |
2652 KB |
Output isn't correct |
| 38 |
Correct |
171 ms |
59036 KB |
Output is correct |
| 39 |
Incorrect |
1 ms |
2652 KB |
Output isn't correct |
| 40 |
Incorrect |
14 ms |
23836 KB |
Output isn't correct |
| 41 |
Correct |
1 ms |
2848 KB |
Output is correct |
| 42 |
Correct |
1 ms |
3164 KB |
Output is correct |
| 43 |
Correct |
150 ms |
56732 KB |
Output is correct |
| 44 |
Correct |
5 ms |
14172 KB |
Output is correct |
| 45 |
Incorrect |
126 ms |
58708 KB |
Output isn't correct |
| 46 |
Correct |
124 ms |
58708 KB |
Output is correct |
| 47 |
Incorrect |
143 ms |
58384 KB |
Output isn't correct |
| 48 |
Correct |
126 ms |
58712 KB |
Output is correct |
| 49 |
Correct |
196 ms |
58804 KB |
Output is correct |
| 50 |
Correct |
129 ms |
58704 KB |
Output is correct |
| 51 |
Correct |
125 ms |
58708 KB |
Output is correct |
| 52 |
Correct |
113 ms |
59288 KB |
Output is correct |
| 53 |
Correct |
110 ms |
58460 KB |
Output is correct |
| 54 |
Correct |
96 ms |
50768 KB |
Output is correct |
| 55 |
Incorrect |
91 ms |
48148 KB |
Output isn't correct |
| 56 |
Correct |
187 ms |
59148 KB |
Output is correct |
| 57 |
Incorrect |
78 ms |
45692 KB |
Output isn't correct |
| 58 |
Correct |
89 ms |
48468 KB |
Output is correct |
| 59 |
Correct |
89 ms |
48096 KB |
Output is correct |
| 60 |
Correct |
118 ms |
57812 KB |
Output is correct |
| 61 |
Correct |
187 ms |
58776 KB |
Output is correct |
| 62 |
Correct |
184 ms |
58940 KB |
Output is correct |
| 63 |
Correct |
189 ms |
59144 KB |
Output is correct |
| 64 |
Correct |
78 ms |
58112 KB |
Output is correct |
| 65 |
Correct |
120 ms |
58332 KB |
Output is correct |
| 66 |
Correct |
131 ms |
58452 KB |
Output is correct |
| 67 |
Correct |
136 ms |
58844 KB |
Output is correct |
| 68 |
Correct |
140 ms |
58804 KB |
Output is correct |
| 69 |
Correct |
79 ms |
45576 KB |
Output is correct |
| 70 |
Incorrect |
38 ms |
23352 KB |
Output isn't correct |
| 71 |
Incorrect |
64 ms |
44724 KB |
Output isn't correct |
| 72 |
Incorrect |
74 ms |
46216 KB |
Output isn't correct |
| 73 |
Correct |
71 ms |
46416 KB |
Output is correct |
| 74 |
Incorrect |
74 ms |
50512 KB |
Output isn't correct |
| 75 |
Incorrect |
76 ms |
53844 KB |
Output isn't correct |
| 76 |
Incorrect |
77 ms |
54604 KB |
Output isn't correct |
| 77 |
Incorrect |
83 ms |
54868 KB |
Output isn't correct |
| 78 |
Incorrect |
83 ms |
54968 KB |
Output isn't correct |
| 79 |
Incorrect |
35 ms |
20304 KB |
Output isn't correct |
| 80 |
Incorrect |
35 ms |
24432 KB |
Output isn't correct |
| 81 |
Incorrect |
37 ms |
24400 KB |
Output isn't correct |
| 82 |
Incorrect |
71 ms |
56148 KB |
Output isn't correct |
| 83 |
Incorrect |
68 ms |
56400 KB |
Output isn't correct |
| 84 |
Incorrect |
32 ms |
13976 KB |
Output isn't correct |
| 85 |
Incorrect |
82 ms |
56160 KB |
Output isn't correct |
| 86 |
Incorrect |
173 ms |
58192 KB |
Output isn't correct |
| 87 |
Incorrect |
75 ms |
56196 KB |
Output isn't correct |
| 88 |
Correct |
92 ms |
55124 KB |
Output is correct |
| 89 |
Correct |
111 ms |
56656 KB |
Output is correct |
| 90 |
Incorrect |
41 ms |
46676 KB |
Output isn't correct |
| 91 |
Incorrect |
92 ms |
56340 KB |
Output isn't correct |
| 92 |
Incorrect |
114 ms |
55040 KB |
Output isn't correct |
| 93 |
Incorrect |
170 ms |
57684 KB |
Output isn't correct |
| 94 |
Correct |
111 ms |
55896 KB |
Output is correct |
| 95 |
Incorrect |
85 ms |
56924 KB |
Output isn't correct |
| 96 |
Correct |
88 ms |
56028 KB |
Output is correct |
| 97 |
Incorrect |
163 ms |
58224 KB |
Output isn't correct |
| 98 |
Incorrect |
88 ms |
56472 KB |
Output isn't correct |
| 99 |
Incorrect |
101 ms |
56660 KB |
Output isn't correct |
| 100 |
Incorrect |
163 ms |
57424 KB |
Output isn't correct |
