Submission #56356

#	Time	Username	Problem	Language	Result	Execution time	Memory
56356		leejseo	배열 탈출 (GA8_array)	C++98	49 / 100	952 ms	66560 KiB

array

#include <bits/stdc++.h>
using namespace std;
int A[2230][2230], D[2230][2230], N;

inline bool valid(int i, int j) {
	return 0<=i && i<N && 0<=j && j<N;
}

void input(){
	scanf("%d", &N);
	for (int i=0; i<N; i++){
		for (int j=0; j<N; j++){
			scanf("%d", &A[i][j]);
		}
	}
}

void DP(){
	D[0][0] = 0;
	for (int s=1; s<2*N-1; s++){
		for (int i=max(0, s-N+1); i<min(N, s+1); i++){
			int j = s-i;
			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){
	input();
	DP();
	printf("%d\n", D[N-1][N-1]);
}

Compilation message (stderr)

array.cpp: In function 'void input()':
array.cpp:10:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &N);
  ~~~~~^~~~~~~~~~
array.cpp:13:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    scanf("%d", &A[i][j]);
    ~~~~~^~~~~~~~~~~~~~~~

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