제출 #47522

#제출 시각아이디문제언어결과실행 시간메모리
47522sampriti앵무새 (IOI11_parrots)C++17
컴파일 에러
0 ms0 KiB
#include "grader.h" #include <cassert> #include <vector> #include <algorithm> using namespace std; // dp[i][j] = number of non-decreasing subsequences of length i with prev element j const int K = 16; void encode(int N, int M[]) { long long dp[21][K]; for(int j = 0; j < K; j++) dp[0][j] = 1; for(int i = 1; i <= 20; i++) { for(int j = 0; j < K; j++) { dp[i][j] = 0; for(int k = j; k < K; k++) dp[i][j] += dp[i - 1][k]; } } long long sum[21]; sum[0] = 0; for(int i = 1; i <= 20; i++) sum[i] = sum[i - 1] + dp[i][0]; vector<int> A; for(int i = 0; i < N; i++) A.push_back(M[i]); if(N % 4 != 0) { for(int i = 0; i < (4 - (N % 4)); i++) A.push_back(0); N += 4 - (N % 4); } for(int i = 0; i < N; i += 4) { int grp_num = i/4; long long num = 0; for(int j = 0; j < 4; j++) { num |= ((long long)A[i+j]) << (j*8); } int len_req = -1; for(int j = 1; j <= 20; j++) { if(num < sum[j]) { len_req = j; break; } } assert(len_req != -1); num -= sum[len_req - 1]; vector<int> ans; int prv = 0; for(int j = len_req; j > 0; j--) { long long sum = 0; for(int k = prv; k < K; k++) { if(num < (sum + dp[j - 1][k])) { send((grp_num << 4) | k); num -= sum; prv = k; break; } sum += dp[j - 1][k]; } } } }
#include "grader.h" #include <cassert> #include <vector> #include <algorithm> using namespace std; // dp[i][j] = number of non-decreasing subsequences of length i with prev element j const int K = 16; void decode(int N, int L, int X[]) { long long dp[21][K]; for(int j = 0; j < K; j++) dp[0][j] = 1; for(int i = 1; i <= 20; i++) { for(int j = 0; j < K; j++) { dp[i][j] = 0; for(int k = j; k < K; k++) dp[i][j] += dp[i - 1][k]; } } long long sum[21]; sum[0] = 0; for(int i = 1; i <= 20; i++) sum[i] = sum[i - 1] + dp[i][0]; int N_ = N; if(N % 4 != 0) N += 4 - (N % 4); for(int grp_num = 0; grp_num < N/4; grp_num++) { vector<int> perm; for(int i = 0; i < L; i++) { if((X[i] >> 4) == grp_num) { perm.push_back(X[i] % (1 << 4)); } } sort(perm.begin(), perm.end()); int len_req = perm.size(); long long num = 0; int prv = 0; for(int i = len_req; i > 0; i--) { for(int j = prv; j < perm[len_req - i]; j++) { num += dp[i - 1][j]; } prv = perm[len_req - i]; } num += sum[len_req - 1]; for(int i = 0; i < 4; i++) { if(grp_num * 4 + i < N_) { output((num >> (i*8)) % (1 << 8)); } } } };

컴파일 시 표준 에러 (stderr) 메시지

encoder.cpp:1:10: fatal error: grader.h: No such file or directory
 #include "grader.h"
          ^~~~~~~~~~
compilation terminated.

decoder.cpp:1:10: fatal error: grader.h: No such file or directory
 #include "grader.h"
          ^~~~~~~~~~
compilation terminated.