제출 #58752

#제출 시각아이디문제언어결과실행 시간메모리
58752SherazinMiners (IOI07_miners)C++14
100 / 100
402 ms1592 KiB
#include <bits/stdc++.h> using namespace std; const int N = 1e5 + 5; int dp[2][4][4][4][4]; int n, arr[N]; string str; int cnt(int x, int y, int z) { int ret = 0; for(int i = 1; i <= 3; i++) if(x == i || y == i || z == i) ret++; return ret; } int main() { scanf("%d", &n); cin >> str; for(int i = 0; i < n; i++) { if(str[i] == 'M') arr[i] = 1; else if(str[i] == 'F') arr[i] = 2; else arr[i] = 3; } int now = 0; for(int k = n - 1; k >= 0; k--) { for(int a = 0; a < 4; a++) for(int b = 0; b < 4; b++) for(int c = 0; c < 4; c++) for(int d = 0; d < 4; d++) dp[now][a][b][c][d] = max(dp[1 - now][arr[k]][a][c][d] + cnt(arr[k], a, b), dp[1 - now][a][b][arr[k]][c] + cnt(arr[k], c, d)); now = 1 - now; } printf("%d", dp[1 - now][0][0][0][0]); return 0; }

컴파일 시 표준 에러 (stderr) 메시지

miners.cpp: In function 'int main()':
miners.cpp:18:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
  ~~~~~^~~~~~~~~~
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