Submission #86252

#	Time	Username	Problem	Language	Result	Execution time	Memory
86252		tjdgus4384	조개 줍기 (KOI17_shell)	C++14	12 / 100	2032 ms	23152 KiB

shell

#include<cstdio>
#include<algorithm>
using namespace std;
int board[1501][1501], boardsum[1501][1501];
char x;
int n;

void sum()
{
    int ans = 0;
    for(int i = 1;i <= n;i++)
    {
        for(int j = 1;j <= n;j++)
        {
            boardsum[i][j] = board[i][j] + max(boardsum[i - 1][j], boardsum[i][j - 1]);
            ans += boardsum[i][j];
        }
    }
    printf("%d\n", ans);
}

int main()
{
    int a, b;
    scanf("%d", &n);
    for(int i = 1;i <= n;i++)
    {
        for(int j = 1;j <= n;j++)
        {
            scanf("%d", &board[i][j]);
        }
    }
    sum();
    for(int i = 0;i < n;i++)
    {
        scanf(" %c", &x);
        scanf("%d %d", &a, &b);
        if(x == 'U') board[a][b]++;
        else board[a][b]--;
        sum();
    }
    return 0;
}

Compilation message (stderr)

shell.cpp: In function 'int main()':
shell.cpp:25:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
     ~~~~~^~~~~~~~~~
shell.cpp:30:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
             scanf("%d", &board[i][j]);
             ~~~~~^~~~~~~~~~~~~~~~~~~~
shell.cpp:36:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf(" %c", &x);
         ~~~~~^~~~~~~~~~~
shell.cpp:37:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d", &a, &b);
         ~~~~~^~~~~~~~~~~~~~~~~

• Subtask 1: 12 / 12
• Subtask 2: 0 / 34
• Subtask 3: 0 / 54