_1267.java

packagecom.fishercoder.solutions.secondthousand;

publicclass_1267 {
publicstaticclassSolution1 {
/*
 * credit: https://leetcode.com/problems/count-servers-that-communicate/discuss/436188/Java-or-Clean-And-Simple-or-Beats-100
 */
publicintcountServers(int[][] grid) {
intm = grid.length;
intn = grid[0].length;
int[] rowCount = newint[m];
int[] columnCount = newint[n];
inttotal = 0;
for (inti = 0; i < m; i++) {
for (intj = 0; j < n; j++) {
if (grid[i][j] == 1) {
rowCount[i]++;
columnCount[j]++;
total++;
 }
 }
 }
for (inti = 0; i < m; i++) {
for (intj = 0; j < n; j++) {
if (grid[i][j] == 1 && rowCount[i] == 1 && columnCount[j] == 1) {
total--;
 }
 }
 }
returntotal;
 }
 }
}