Submission #56364

#	Time	Username	Problem	Language	Result	Execution time	Memory
56364		leejseo	배열 탈출 (GA8_array)	C++98	49 / 100	890 ms	66560 KiB

array

#include <stdio.h>
#include <algorithm>
#include <vector>
using namespace std;

int N;

vector<int> A[2222]; 
vector<int> D[2222]; 
inline bool valid(int i, int j) {
	return 0<=i && i<N && 0<=j && j<N;
}

void DP(){
	for (int i=0; i<N; i++){
		if (i >= 2){
			D[i-2].clear();
			A[i-2].clear();
		}
		A[i].resize(N);
		D[i].resize(N);
		for (int j=0; j<N; j++){
			scanf("%d", &A[i][j]);
			if (i == 0 && j == 0){
				D[0][0] = 0;
				continue;
			}
			D[i][j] = (int)1e9;
			if (valid(i-1, j)) D[i][j] = min(D[i][j], D[i-1][j] + max(0, A[i][j] - A[i-1][j] + 1));
			if (valid(i, j-1)) D[i][j] = min(D[i][j], D[i][j-1] + max(0, A[i][j] - A[i][j-1] + 1));
		}
	}
}

int main(void){
	scanf("%d", &N);
	DP();
	printf("%d\n", D[N-1][N-1]);
}

Compilation message (stderr)

array.cpp: In function 'void DP()':
array.cpp:23:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    scanf("%d", &A[i][j]);
    ~~~~~^~~~~~~~~~~~~~~~
array.cpp: In function 'int main()':
array.cpp:36:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &N);
  ~~~~~^~~~~~~~~~

• Subtask 1: 6 / 6
• Subtask 2: 11 / 11
• Subtask 3: 32 / 32
• Subtask 4: 0 / 51