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✅ (wip) P7911 莫名其妙不一样 https://www.luogu.com.cn/problem/P7911

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This commit is contained in:
LittleSheep
2024-10-08 23:11:04 +08:00
parent 64a7875d1d
commit 318c907321
11 changed files with 2324 additions and 1 deletions
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3
CMakeLists.txt
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@@ -21,4 +21,5 @@ add_executable(Playground
state-compress-dp/main.cpp
sudoku/main.cc
take-most-space-element/main.cc
walking-in-maze/main.cc)
walking-in-maze/main.cc
network-connection/main.cpp)

18
add-oil/main.cc Normal file
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@@ -0,0 +1,18 @@
#include <iostream>
#include <cstring>
#include <algorithm>
using namespace std;
int main() {
int num = 0;
string str;
cin >> str;
if (atoi(str[0]) > 2) {
num++;
}
bool is_feb = atoi(str[1]) == 2;
int days = stoi(str[3].to_string()+str[4].to_string());
if (days > 30 || (is_feb && days > 28)) {
num++;
}
cout << num << endl;
}

6
network-connection/data.in Normal file
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@@ -0,0 +1,6 @@
5
Server 192.168.1.1:8080
Server 192.168.1.1:8080
Client 192.168.1.1:8080
Client 192.168.1.1:80
Client 192.168.1.1:99999

11
network-connection/data2.in Normal file
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@@ -0,0 +1,11 @@
10
Server 192.168.1.1:80
Client 192.168.1.1:80
Client 192.168.1.1:8080
Server 192.168.1.1:80
Server 192.168.1.1:8080
Server 192.168.1.999:0
Client 192.168.1.1.8080
Client 192.168.1.1:8080
Client 192.168.1.1:80
Client 192.168.1.999:0

102
network-connection/data3.in Normal file
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100
Server 249.217.185.41:28390
Server 58.139.75.150:32916
Server 164.132.230.103:2805
Server 230.34.60.10:3192
Server 8.158.211.70:45542
Server 102.194.238.18:15088
Server 101.59.241.186:52427
Server 115.143.108.72:16537
Server 161.221.13.212:52047
Server 7.75.149.236:11770
Server 108.220.137.165:26957
Server 121.180.139.110:5392
Server 12.214.2.248:41461
Server 158.68.44.93:53435
Server 97.63.72.59:35064
Server 220.187.86.78:64381
Server 59.29.128.91:2717
Server 140.175.106.200:30566
Server 245.233.205.228:55782
Server 205.24.170.47:55248
Server 103.60.29.80:37007
Server 223.76.148.124:12954
Server 80.112.212.73:31448
Server 244.221.32.22:12816
Server 140.140.178.160:24540
Server 98.185.111.15:42673
Server 219.249.194.5:48754
Server 80.139.152.191:47985
Server 103.98.92.158:15313
Server 112.94.91.98:9353
Server 203.152.232.46:8570
Server 64.7.69.2:53535
Server 70.77.237.205:48715
Server 63.190.182.194:22734
Server 167.198.175.203:52975
Server 231.18.52.239:65074
Server 30.65.214.84:14567
Server 185.76.45.166:49771
Server 173.43.69.196:13369
Server 85.11.251.17:65259
Server 151.72.42.94:5341
Server 169.96.64.212:12779
Server 114.141.130.157:47652
Server 217.0.167.240:30040
Server 187.253.126.242:22788
Server 33.61.94.253:4080
Server 254.44.190.153:24278
Server 146.243.101.66:32070
Server 80.79.84.224:49562
Server 63.81.148.7:28810
Client 81.235.246.73:18305
Client 59.29.128.91:2717
Client 33.61.94.253:4080
Client 220.120.144.227:3377
Client 64.7.69.2:53535
Client 58.139.75.150:32916
Client 187.253.126.242:22788
Client 100.157.115.70:35513
Client 102.194.238.18:15088
Client 103.60.29.80:37007
Client 140.140.178.160:24540
Client 203.152.232.46:8570
Client 63.190.182.194:22734
Client 231.18.52.239:65074
Client 54.38.47.208:49299
Client 161.221.13.212:52047
Client 219.146.191.132:46238
Client 219.249.194.5:48754
Client 63.81.148.7:28810
Client 103.98.92.158:15313
Client 121.180.139.110:5392
Client 173.43.69.196:13369
Client 244.221.32.22:12816
Client 195.217.161.202:296
Client 200.1.184.95:61373
Client 217.0.167.240:30040
Client 239.182.127.128:4536
Client 49.50.201.196:52090
Client 30.65.214.84:14567
Client 61.35.102.136:21585
Client 12.214.2.248:41461
Client 194.36.60.51:11079
Client 37.61.94.253:4080
Client 34.213.35.199:47886
Client 8.158.211.70:45542
Client 63.81.148.0:28810
Client 209.249.194.5:48754
Client 7.75.149.236:11770
Client 228.171.11.185:11107
Client 95.18.63.74:30162
Client 116.241.162.73:63458
Client 249.207.124.200:48831
Client 223.76.148.124:12954
Client 70.77.237.205:48715
Client 35.29.90.180:59047
Client 164.132.230.103:2805
Client 59.29.128.91:27178
Client 86.190.70.70:20998
Client 59.29.128.91:2517
Client 139.200.25.104:52480

100
network-connection/data3.out Normal file
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@@ -0,0 +1,100 @@
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
FAIL
17
46
FAIL
32
2
45
FAIL
6
21
25
31
34
36
FAIL
9
FAIL
27
50
29
12
39
24
FAIL
FAIL
44
FAIL
FAIL
37
FAIL
13
FAIL
FAIL
FAIL
5
FAIL
FAIL
10
FAIL
FAIL
FAIL
FAIL
22
33
FAIL
3
FAIL
FAIL
FAIL
FAIL

1002
network-connection/data4.in Normal file
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1000
network-connection/data4.out Normal file
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57
network-connection/main.cpp Normal file
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#include <iostream>
#include <string>
#include <sstream>
#include <map>
#include <cstring>
using namespace std;
bool validate_addr(const string &addr) {
if (addr.size() > 22) return false;
int ip_parts[4];
int port;
sscanf(addr.c_str(), "%d.%d.%d.%d:%d", &ip_parts[0], &ip_parts[1], &ip_parts[2], &ip_parts[3], &port);
char out[35];
sprintf(out, "%d.%d.%d.%d:%d", ip_parts[0], ip_parts[1], ip_parts[2], ip_parts[3], port);
if (strlen(out) != addr.size()) return false; // Leading 0
if (port > 65536 || port < 0) return false;
for (int ip_part: ip_parts) {
if (ip_part > 256 || ip_part < 0) return false;
}
return true;
}
int main() {
int n;
map<string, int> servers;
cin >> n;
for (int i = 0; i < n; i++) {
string mode, t;
cin >> mode >> t;
if (!validate_addr(t)) {
cout << "ERR" << endl;
continue;
}
if (mode == "Server") {
if (servers.find(t) == servers.end()) {
// Not found, good to go
servers[t] = i + 1;
cout << "OK" << endl;
} else {
cout << "FAIL" << endl;
}
}
if (mode == "Client") {
if (servers.find(t) == servers.end()) {
cout << "FAIL" << endl;
} else {
cout << servers[t] << endl;
}
}
}
}

2
second-large-number/data.in Normal file
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@@ -0,0 +1,2 @@
100
40 32 2 42 47 7 24 14 11 7 19 3 44 49 44 32 4 28 4 48 4 7 41 32 42 41 27 4 20 40 44 30 13 44 8 10 16 46 50 18 20 15 4 32 22 25 10 2 17 10 49 4 47 10 41 28 3 3 26 22 13 40 29 14 9 1 43 21 19 20 10 12 40 6 14 9 14 46 25 50 17 45 1 30 5 37 8 5 47 43 39 12 25 1 40 20 2 10 14 21

24
second-large-number/main.cc Normal file
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@@ -0,0 +1,24 @@
#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
int main() {
int k;
cin >> k;
vector<int> arr;
for (int i = 0; i < k; i++) {
int t;
cin >> t;
arr.push_back(t);
}
auto ptr = unique(arr.begin(), arr.end());
arr.erase(ptr, arr.end());
if (arr.size() <= 2) {
cout << -1 << endl;
return 0;
}
sort(arr.begin(), arr.end());
arr.insert(arr.begin(), 1, 0);
auto kp = arr.size()-1;
cout << max(arr[kp - 2], arr[kp] % arr[kp - 1]) << endl;
}