Submission #882238

#TimeUsernameProblemLanguageResultExecution timeMemory
882238rainboyMaxcomp (info1cup18_maxcomp)C11
100 / 100
140 ms17236 KiB
#include <stdio.h> #define N 1000 #define M 1000 int min(int a, int b) { return a < b ? a : b; } int max(int a, int b) { return a > b ? a : b; } int main() { static int aa[N][M], bb[N][M]; int n, m, i, j, ans; scanf("%d%d", &n, &m); for (i = 0; i < n; i++) for (j = 0; j < m; j++) { scanf("%d", &aa[i][j]); bb[i][j] = aa[i][j]; } for (i = 0; i < n; i++) { for (j = 1; j < m; j++) bb[i][j] = min(bb[i][j], bb[i][j - 1] + 1); for (j = m - 2; j >= 0; j--) bb[i][j] = min(bb[i][j], bb[i][j + 1] + 1); } for (j = 0; j < m; j++) { for (i = 1; i < n; i++) bb[i][j] = min(bb[i][j], bb[i - 1][j] + 1); for (i = n - 2; i >= 0; i--) bb[i][j] = min(bb[i][j], bb[i + 1][j] + 1); } ans = -1; for (i = 0; i < n; i++) for (j = 0; j < m; j++) ans = max(ans, aa[i][j] - bb[i][j] - 1); printf("%d\n", ans); return 0; }

Compilation message (stderr)

maxcomp.c: In function 'main':
maxcomp.c:13:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 |  scanf("%d%d", &n, &m);
      |  ^~~~~~~~~~~~~~~~~~~~~
maxcomp.c:16:4: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   16 |    scanf("%d", &aa[i][j]);
      |    ^~~~~~~~~~~~~~~~~~~~~~
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