From bf9399d6c783ba907c3e5d6567dfad68b7582549 Mon Sep 17 00:00:00 2001
From: Chao Zhan <chao.zhan@fu-berlin.de>
Date: Fri, 9 Jun 2023 13:28:04 +0200
Subject: [PATCH] fix

---
 exercises/MPI_examples/nb_point_2_point/nb_point_2_point.c | 1 +
 exercises/MPI_examples/round_trip/round_trip.c             | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/exercises/MPI_examples/nb_point_2_point/nb_point_2_point.c b/exercises/MPI_examples/nb_point_2_point/nb_point_2_point.c
index 1ee0f03..896159f 100644
--- a/exercises/MPI_examples/nb_point_2_point/nb_point_2_point.c
+++ b/exercises/MPI_examples/nb_point_2_point/nb_point_2_point.c
@@ -42,6 +42,7 @@ int main(int argc, char **argv) {
       strncpy(message, "This is not a message!", 32);
       MPI_Isend(message, 32, MPI_CHAR, 1, 0, MPI_COMM_WORLD, &request);
       busy();
+      MPI_Wait(&request, &status);
       printf("[%s] Message sent: %s\n", processor_name, message);
     } else {
       MPI_Irecv(message, 32, MPI_CHAR, 0, 0, MPI_COMM_WORLD, &request);
diff --git a/exercises/MPI_examples/round_trip/round_trip.c b/exercises/MPI_examples/round_trip/round_trip.c
index 3f40c73..8e9fc48 100644
--- a/exercises/MPI_examples/round_trip/round_trip.c
+++ b/exercises/MPI_examples/round_trip/round_trip.c
@@ -4,7 +4,7 @@
 
 int main(int argc, char** argv) {
   int rank, num_procs, token;
-
+    
   MPI_Init(&argc, &argv);
   MPI_Comm_rank(MPI_COMM_WORLD, &rank);
   MPI_Comm_size(MPI_COMM_WORLD, &num_procs);
-- 
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