god what is it with these preincrements

Author: SansPapyrus683

solutions/gold/cses-1148.mdx

@@ -88,15 +88,15 @@ int main() {
 			ans[d[i][j] - u[i][j] + 3][r[i][j]]++;
 		}
 	}
-	for (int j = 1; j <= m; ++j) {
+	for (int j = 1; j <= m; j++) {
 		for (int i = 1; i <= n; ++i) { ans[i][j] += ans[i - 1][j]; }
 		for (int i = 1; i <= n; ++i) { ans[i][j] += ans[i - 1][j]; }
 	}
-	for (int i = n; i >= 1; --i) {
+	for (int i = n; i >= 1; i--) {
 		for (int j = m; j >= 2; --j) { ans[i][j - 1] += ans[i][j]; }
 	}
 
-	for (int i = 1; i <= n; ++i) {
+	for (int i = 1; i <= n; i++) {
 		for (int j = 1; j <= m; ++j) { cout << ans[i][j] << " "; }
 		cout << '\n';
 	}