제출 #1336047

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1336047		YSH2020	메기 농장 (IOI22_fish)	C++20	컴파일 에러	0 ms	0 KiB

fish

long long max_weights(int N, int M, vector<int> X, vector<int> Y, vector<int> W) {
	long long pref[2][N+1];
	memset(pref,0,sizeof(pref));
	for (int i = 0; i < M; i++) {
		pref[X[i]][Y[i]+1]+=W[i];
	}
	for (int i = 1; i <= N; i++) {
		pref[0][i]+=pref[0][i-1];
		pref[1][i]+=pref[1][i-1];
	}
	if (N<3) return max(pref[0][N], pref[1][N]);
	long long ans=max(pref[0][N], pref[1][N]);
	for (int i = 1; i <= N; i++) {
		ans=max(ans,pref[0][i]+pref[1][n]-pref[1][i-1]);
	}
	return ans;
}

컴파일 시 표준 에러 (stderr) 메시지

fish.cpp:1:37: error: 'vector' has not been declared
    1 | long long max_weights(int N, int M, vector<int> X, vector<int> Y, vector<int> W) {
      |                                     ^~~~~~
fish.cpp:1:43: error: expected ',' or '...' before '<' token
    1 | long long max_weights(int N, int M, vector<int> X, vector<int> Y, vector<int> W) {
      |                                           ^
fish.cpp: In function 'long long int max_weights(int, int, int)':
fish.cpp:3:9: error: 'memset' was not declared in this scope
    3 |         memset(pref,0,sizeof(pref));
      |         ^~~~~~
fish.cpp:1:1: note: 'memset' is defined in header '<cstring>'; did you forget to '#include <cstring>'?
  +++ |+#include <cstring>
    1 | long long max_weights(int N, int M, vector<int> X, vector<int> Y, vector<int> W) {
fish.cpp:5:22: error: 'X' was not declared in this scope
    5 |                 pref[X[i]][Y[i]+1]+=W[i];
      |                      ^
fish.cpp:5:28: error: 'Y' was not declared in this scope
    5 |                 pref[X[i]][Y[i]+1]+=W[i];
      |                            ^
fish.cpp:5:37: error: 'W' was not declared in this scope
    5 |                 pref[X[i]][Y[i]+1]+=W[i];
      |                                     ^
fish.cpp:11:25: error: 'max' was not declared in this scope
   11 |         if (N<3) return max(pref[0][N], pref[1][N]);
      |                         ^~~
fish.cpp:12:23: error: 'max' was not declared in this scope
   12 |         long long ans=max(pref[0][N], pref[1][N]);
      |                       ^~~
fish.cpp:14:48: error: 'n' was not declared in this scope
   14 |                 ans=max(ans,pref[0][i]+pref[1][n]-pref[1][i-1]);
      |                                                ^