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QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#350727 | #8340. 3 Sum | ckiseki | AC ✓ | 382ms | 14944kb | C++20 | 3.4kb | 2024-03-11 01:48:46 | 2024-10-13 18:48:50 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
#define all(x) begin(x), end(x)
#ifdef CKISEKI
#include <experimental/iterator>
#define safe cerr<<__PRETTY_FUNCTION__<<" line "<<__LINE__<<" safe\n"
#define debug(a...) debug_(#a, a)
#define orange(a...) orange_(#a, a)
void debug_(auto s, auto ...a) {
cerr << "\e[1;32m(" << s << ") = (";
int f = 0;
(..., (cerr << (f++ ? ", " : "") << a));
cerr << ")\e[0m\n";
}
void orange_(auto s, auto L, auto R) {
cerr << "\e[1;33m[ " << s << " ] = [ ";
using namespace experimental;
copy(L, R, make_ostream_joiner(cerr, ", "));
cerr << " ]\e[0m\n";
}
#else
#define safe ((void)0)
#define debug(...) safe
#define orange(...) safe
#endif
string Add(string a, string b) {
debug(a, "+", b);
//ranges::reverse(a);
//ranges::reverse(b);
while (a.size() < max(a.size(), b.size()))
a += "0";
while (b.size() < max(a.size(), b.size()))
b += "0";
int cur = 0;
for (int i = 0; i < ssize(a); ++i) {
cur += a[i] - '0';
cur += b[i] - '0';
a[i] = cur % 10 + '0';
cur /= 10;
}
if (cur)
a.push_back('0' + cur);
//ranges::reverse(a);
debug(a);
return a;
}
string Mod(string s, int k) {
if (ssize(s) < k)
return s;
if (ssize(s) == k) {
bool all9 = true;
for (auto c : s)
all9 &= c == '9';
if (all9)
return "0";
return s;
}
ranges::reverse(s);
string ret = s.substr(0, k);
for (int i = k; i < ssize(s); i += k) {
int l = min<int>(k, ssize(s) - i);
auto cur = Add(ret, s.substr(i, l));
ranges::reverse(cur);
ret = Mod(cur, k);
ranges::reverse(ret);
}
ranges::reverse(ret);
return ret;
}
constexpr int K = 3;
constexpr int64_t MODS[K] = {1000005863, 1000009601, 1000006393};
int main() {
cin.tie(nullptr)->sync_with_stdio(false);
int n, m;
cin >> n >> m;
vector<string> a(n);
for (auto &ai : a) {
cin >> ai;
ai = Mod(ai, m);
debug(ai);
}
vector<array<int, K>> v;
for (auto ai : a) {
array<int, K> cur = {};
for (int k = 0; k < K; ++k) {
for (auto c : ai)
cur[k] = (cur[k] * 10LL + c - '0') % MODS[k];
}
v.push_back(cur);
}
for (auto x : v) {
orange(all(x));
}
array<array<int, K>, 3> tar = {};
array<int, K> M;
M.fill(1);
for (int i = 0; i < m; ++i) {
for (int k = 0; k < K; ++k)
M[k] = (M[k] * 10LL) % MODS[k];
}
for (int k = 0; k < K; ++k) {
M[k] = (M[k] + MODS[k] - 1) % MODS[k];
}
tar[1] = M;
for (int k = 0; k < K; ++k) {
M[k] = (M[k] + M[k]) % MODS[k];
}
tar[2] = M;
int ans = 0;
for (int i = 0; i < n; ++i) {
debug(i);
map<array<int, K>, int> cnt;
for (int j = i; j < n; ++j) {
auto cur = v[j];
for (int k = 0; k < K; ++k) {
cur[k] = (cur[k] + v[i][k] + MODS[k]) % MODS[k];
}
cnt[cur] += 1;
debug("add", i, j);
//orange(all(cur));
for (int t = 0; t < 3; ++t) {
auto que = tar[t];
for (int k = 0; k < K; ++k)
que[k] = (que[k] + MODS[k] - v[j][k]) % MODS[k];
//debug("que", t, j);
//orange(all(que));
auto it = cnt.find(que);
if (it != cnt.end() and it->second) {
debug("que", t, j, it->second);
orange(all(que));
debug(it->second);
ans += it->second;
}
}
}
}
cout << ans << '\n';
return 0;
}
这程序好像有点Bug,我给组数据试试?
詳細信息
Test #1:
score: 100
Accepted
time: 1ms
memory: 3504kb
input:
4 1 0 1 10 17
output:
3
result:
ok 1 number(s): "3"
Test #2:
score: 0
Accepted
time: 42ms
memory: 4364kb
input:
500 859 7118711592236878297922359501613604144948355616986970837340677671376753603836852811886591300370143151943368529129749813118476151865844255212534355441611481420938483178075143062691345257288242460282715389758789648541099090735875617822348551942134616963557723055980260082230902505269975518146286...
output:
0
result:
ok 1 number(s): "0"
Test #3:
score: 0
Accepted
time: 247ms
memory: 13460kb
input:
500 17336 11871159223687829792235950161360414494835561698697083734067767137675360383685281188659130037014315194336852912974981311847615186584425521253435544161148142093848317807514306269134525728824246028271538975878964854109909073587561782234855194213461696355772305598026008223090250526997551814628...
output:
0
result:
ok 1 number(s): "0"
Test #4:
score: 0
Accepted
time: 382ms
memory: 14884kb
input:
500 1 751324443898124078584847834484321089092662321556147445230263526014359393841194947303407593948729802551881289193716611867931891257925091769456350249725997883453296895094445731130479434019358742162771547784250401546380268386074363779242500860317042151185119666027858022664683818314351285215150806...
output:
2327631
result:
ok 1 number(s): "2327631"
Test #5:
score: 0
Accepted
time: 324ms
memory: 14944kb
input:
500 2 408542968136435277974575411503179002415404345446801430469044749372949272333801248935236224652806667129749035002588943020176263162139056819871274824302889304493205266143688886696157147111754418731401856424401766968832165255416237731963027205324149660112574729610391396555581935236134531799950318...
output:
212002
result:
ok 1 number(s): "212002"
Test #6:
score: 0
Accepted
time: 178ms
memory: 10344kb
input:
500 11500 75411775796562109942642493394321873284995260953010112281856775261847503626737348402159485133662757032091519863427156582689971229143089317472838196453888261138079171290535429921921548971897026706656838415620603757605079012541561774699628665865662183868374645956694140356716037674688084770628...
output:
7675
result:
ok 1 number(s): "7675"
Test #7:
score: 0
Accepted
time: 180ms
memory: 10500kb
input:
500 11500 85355036663164764459816544518601485185320972076300982726542821424439713703229669576802138231401047471351087455159512255765325323540671792953715169122669767368905391325060775725733157611188832204902997772518104188947349204726490597030311894441123834099315122116302203972018409854605418988681...
output:
1070
result:
ok 1 number(s): "1070"
Test #8:
score: 0
Accepted
time: 0ms
memory: 3608kb
input:
1 11500 9999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999...
output:
1
result:
ok 1 number(s): "1"
Extra Test:
score: 0
Extra Test Passed