Create Row with minimum number of 1's

Row with minimum number of 1's

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+//Row with minimum number of 1's
+
+import java.io.*;
+import java.util.*;
+
+class GFG {
+    public static void main(String args[]) throws IOException {
+        BufferedReader read = new BufferedReader(new InputStreamReader(System.in));
+        int t = Integer.parseInt(read.readLine());
+
+        while(t-- > 0) {
+            String s[] = read.readLine().split(" ");
+            int N = Integer.parseInt(s[0]);
+            int M = Integer.parseInt(s[1]);
+            int A[][] = new int[N][M];
+
+            for(int i = 0; i < N; i++) {
+                String S[] = read.readLine().split(" ");
+
+                for(int j = 0; j < M; j++) {
+                    A[i][j] = Integer.parseInt(S[j]);
+                }
+            }
+
+            Solution ob = new Solution();
+            System.out.println(ob.minRow(N, M, A));
+        }
+    }
+}
+
+class Solution {
+    int minRow(int n, int m, int a[][]) {
+        int minOnes = m, min_row = 1;
+
+        for(int i = 0; i < n; i++) {
+            int ones = 0;
+
+            for(int j = 0; j < m; j++) {
+
+                if(a[i][j] == 1) {
+                    ones++;
+                }
+            }
+
+            if(ones < minOnes) {
+                minOnes = ones;
+                min_row = i + 1;
+            }
+        }
+
+        return min_row;
+    }
+};