Submission #2502564
Source Code Expand
#include<stdio.h> #include<vector> #include<algorithm> #include<string> #include<iostream> using namespace std; vector<int>pat[101010]; bool flag[101010]; bool isv[101010]; string str; bool dfs(int node) { flag[node] = true; bool r = (str[node] == 'W'); for (int i = 0; i < pat[node].size(); i++) { int v = pat[node][i]; if (flag[v])continue; r |= dfs(v); } return isv[node] = r; } int sc[101010]; int maxi = 0; int calc(int node) { flag[node] = true; int m1 = 0, m2 = 0; for (int i = 0; i < pat[node].size(); i++) { int v = pat[node][i]; if (!isv[v])continue; if (flag[v])continue; int t = calc(v); if (m1 < t)m2 = m1, m1 = t; else if (m2 < t)m2 = t; } //printf("%d %d %d\n", node + 1, m1, m2); maxi = max(maxi, m1 + m2 + ((str[node] == 'W') ? 2 : 0)); return m1 + ((str[node] == 'W') ? 2 : 0); } int main() { int num; scanf("%d", &num); for (int i = 0; i < num - 1; i++) { int za, zb; scanf("%d%d", &za, &zb); za--, zb--; pat[za].push_back(zb); pat[zb].push_back(za); } cin >> str; int rr = -1; for (int i = 0; i < num; i++)if (str[i] == 'W')rr = i; if (rr == -1) { printf("0\n"); return 0; } dfs(rr); int cnt = 0; for (int i = 0; i < num; i++)cnt += isv[i]; if (cnt == 1) { printf("1\n"); return 0; } for (int i = 0; i < num; i++) { //if (isv[i])printf("%d\n", i + 1); for (int j = 0; j < pat[i].size(); j++) { if (isv[i] && isv[pat[i][j]])str[i] = 'W' + 'B' - str[i]; } } //cout << str << endl; fill(flag, flag + num, false); calc(rr); int ans = cnt * 2 - 2; for (int i = 0; i < num; i++)if (isv[i] && str[i] == 'W')ans++; printf("%d\n", ans - maxi); }
Submission Info
Submission Time | |
---|---|
Task | F - Monochrome Cat |
User | DEGwer |
Language | C++14 (GCC 5.4.1) |
Score | 800 |
Code Size | 1726 Byte |
Status | AC |
Exec Time | 58 ms |
Memory | 12416 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:45:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &num); ^ ./Main.cpp:49:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &za, &zb); ^
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 800 / 800 | ||||
Status |
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Set Name | Test Cases |
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Sample | 0_000.txt, 0_001.txt, 0_002.txt, 0_003.txt |
All | 0_000.txt, 0_001.txt, 0_002.txt, 0_003.txt, 1_003.txt, 1_004.txt, 1_005.txt, 1_006.txt, 1_007.txt, 1_008.txt, 1_009.txt, 1_010.txt, 1_011.txt, 1_012.txt, 1_013.txt, 1_014.txt, 1_015.txt, 1_016.txt, 1_017.txt, 1_018.txt, 1_019.txt, 1_020.txt, 1_021.txt, 1_022.txt, 1_023.txt, 1_024.txt, 1_025.txt, 1_026.txt, 1_027.txt, 1_028.txt, 1_029.txt, 1_030.txt, 1_031.txt, 1_032.txt, 1_033.txt, 1_034.txt, 1_035.txt, 1_036.txt, 1_037.txt, 1_038.txt, 1_039.txt, 1_040.txt, 1_041.txt, 1_042.txt, 1_043.txt, 1_044.txt, 1_045.txt, 1_046.txt, 1_047.txt, 1_048.txt, 1_049.txt, 1_050.txt, 1_051.txt, 1_052.txt, 1_053.txt, 1_054.txt, 1_055.txt, 1_056.txt, 1_057.txt, 1_058.txt, 1_059.txt, 1_060.txt, 1_061.txt, 1_062.txt, 1_063.txt, 1_064.txt, 1_065.txt, 1_066.txt, 1_067.txt, 1_068.txt, 1_069.txt, 1_070.txt, 1_071.txt, 1_072.txt, 1_073.txt, 1_074.txt, 1_075.txt, 1_076.txt, 1_077.txt, 1_078.txt, 1_079.txt, 1_080.txt, 1_081.txt, 1_082.txt, 1_083.txt, 1_084.txt, 1_085.txt, 1_086.txt, 1_087.txt, 1_088.txt, 1_089.txt, 1_090.txt, 1_091.txt, 1_092.txt, 1_093.txt, 1_094.txt, 1_095.txt, 1_096.txt, 1_097.txt, 1_098.txt, 1_099.txt, 1_100.txt, 1_101.txt, 1_102.txt, 1_103.txt, 1_104.txt, 1_105.txt, 1_106.txt, 1_107.txt, 1_108.txt, 1_109.txt, 1_110.txt, 1_111.txt, 1_112.txt, 1_113.txt, 1_114.txt, 1_115.txt, 1_116.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
0_000.txt | AC | 2 ms | 2560 KB |
0_001.txt | AC | 2 ms | 2560 KB |
0_002.txt | AC | 2 ms | 2560 KB |
0_003.txt | AC | 2 ms | 2560 KB |
1_003.txt | AC | 2 ms | 2560 KB |
1_004.txt | AC | 2 ms | 2560 KB |
1_005.txt | AC | 2 ms | 2560 KB |
1_006.txt | AC | 2 ms | 2560 KB |
1_007.txt | AC | 2 ms | 2560 KB |
1_008.txt | AC | 2 ms | 2560 KB |
1_009.txt | AC | 2 ms | 2560 KB |
1_010.txt | AC | 2 ms | 2560 KB |
1_011.txt | AC | 2 ms | 2560 KB |
1_012.txt | AC | 2 ms | 2560 KB |
1_013.txt | AC | 2 ms | 2560 KB |
1_014.txt | AC | 2 ms | 2560 KB |
1_015.txt | AC | 2 ms | 2560 KB |
1_016.txt | AC | 2 ms | 2560 KB |
1_017.txt | AC | 2 ms | 2560 KB |
1_018.txt | AC | 2 ms | 2560 KB |
1_019.txt | AC | 2 ms | 2560 KB |
1_020.txt | AC | 2 ms | 2560 KB |
1_021.txt | AC | 2 ms | 2560 KB |
1_022.txt | AC | 2 ms | 2560 KB |
1_023.txt | AC | 2 ms | 2560 KB |
1_024.txt | AC | 2 ms | 2560 KB |
1_025.txt | AC | 2 ms | 2560 KB |
1_026.txt | AC | 2 ms | 2560 KB |
1_027.txt | AC | 2 ms | 2560 KB |
1_028.txt | AC | 2 ms | 2560 KB |
1_029.txt | AC | 2 ms | 2560 KB |
1_030.txt | AC | 2 ms | 2560 KB |
1_031.txt | AC | 2 ms | 2560 KB |
1_032.txt | AC | 2 ms | 2560 KB |
1_033.txt | AC | 2 ms | 2560 KB |
1_034.txt | AC | 2 ms | 2560 KB |
1_035.txt | AC | 2 ms | 2560 KB |
1_036.txt | AC | 2 ms | 2560 KB |
1_037.txt | AC | 2 ms | 2560 KB |
1_038.txt | AC | 2 ms | 2560 KB |
1_039.txt | AC | 2 ms | 2560 KB |
1_040.txt | AC | 2 ms | 2560 KB |
1_041.txt | AC | 2 ms | 2560 KB |
1_042.txt | AC | 2 ms | 2560 KB |
1_043.txt | AC | 2 ms | 2560 KB |
1_044.txt | AC | 2 ms | 2560 KB |
1_045.txt | AC | 19 ms | 4992 KB |
1_046.txt | AC | 23 ms | 5760 KB |
1_047.txt | AC | 37 ms | 5888 KB |
1_048.txt | AC | 35 ms | 7808 KB |
1_049.txt | AC | 40 ms | 9600 KB |
1_050.txt | AC | 35 ms | 7552 KB |
1_051.txt | AC | 28 ms | 5624 KB |
1_052.txt | AC | 8 ms | 3328 KB |
1_053.txt | AC | 26 ms | 5880 KB |
1_054.txt | AC | 12 ms | 3964 KB |
1_055.txt | AC | 27 ms | 5624 KB |
1_056.txt | AC | 16 ms | 4476 KB |
1_057.txt | AC | 3 ms | 2688 KB |
1_058.txt | AC | 24 ms | 5632 KB |
1_059.txt | AC | 14 ms | 3840 KB |
1_060.txt | AC | 34 ms | 6656 KB |
1_061.txt | AC | 45 ms | 8064 KB |
1_062.txt | AC | 24 ms | 5504 KB |
1_063.txt | AC | 27 ms | 4864 KB |
1_064.txt | AC | 19 ms | 4224 KB |
1_065.txt | AC | 4 ms | 2816 KB |
1_066.txt | AC | 32 ms | 5628 KB |
1_067.txt | AC | 10 ms | 3328 KB |
1_068.txt | AC | 23 ms | 4608 KB |
1_069.txt | AC | 14 ms | 3584 KB |
1_070.txt | AC | 24 ms | 4352 KB |
1_071.txt | AC | 32 ms | 5504 KB |
1_072.txt | AC | 23 ms | 4480 KB |
1_073.txt | AC | 6 ms | 2944 KB |
1_074.txt | AC | 4 ms | 2816 KB |
1_075.txt | AC | 22 ms | 4224 KB |
1_076.txt | AC | 51 ms | 6144 KB |
1_077.txt | AC | 31 ms | 5376 KB |
1_078.txt | AC | 14 ms | 3712 KB |
1_079.txt | AC | 22 ms | 4096 KB |
1_080.txt | AC | 24 ms | 4352 KB |
1_081.txt | AC | 56 ms | 9472 KB |
1_082.txt | AC | 57 ms | 10496 KB |
1_083.txt | AC | 37 ms | 6016 KB |
1_084.txt | AC | 47 ms | 9984 KB |
1_085.txt | AC | 58 ms | 12416 KB |
1_086.txt | AC | 58 ms | 12032 KB |
1_087.txt | AC | 36 ms | 6520 KB |
1_088.txt | AC | 36 ms | 6520 KB |
1_089.txt | AC | 30 ms | 6392 KB |
1_090.txt | AC | 33 ms | 6520 KB |
1_091.txt | AC | 36 ms | 6520 KB |
1_092.txt | AC | 31 ms | 6392 KB |
1_093.txt | AC | 55 ms | 7936 KB |
1_094.txt | AC | 55 ms | 8192 KB |
1_095.txt | AC | 38 ms | 6016 KB |
1_096.txt | AC | 46 ms | 7424 KB |
1_097.txt | AC | 55 ms | 7936 KB |
1_098.txt | AC | 54 ms | 7936 KB |
1_099.txt | AC | 45 ms | 6396 KB |
1_100.txt | AC | 45 ms | 6396 KB |
1_101.txt | AC | 35 ms | 6140 KB |
1_102.txt | AC | 39 ms | 6396 KB |
1_103.txt | AC | 45 ms | 6396 KB |
1_104.txt | AC | 44 ms | 6396 KB |
1_105.txt | AC | 52 ms | 6272 KB |
1_106.txt | AC | 52 ms | 6272 KB |
1_107.txt | AC | 38 ms | 6016 KB |
1_108.txt | AC | 44 ms | 6272 KB |
1_109.txt | AC | 52 ms | 6272 KB |
1_110.txt | AC | 52 ms | 6272 KB |
1_111.txt | AC | 52 ms | 6272 KB |
1_112.txt | AC | 52 ms | 6272 KB |
1_113.txt | AC | 38 ms | 6016 KB |
1_114.txt | AC | 44 ms | 6272 KB |
1_115.txt | AC | 52 ms | 6272 KB |
1_116.txt | AC | 52 ms | 6272 KB |