From 8bfd43bcaf63fe6584fe0811e053ab584bb81c57 Mon Sep 17 00:00:00 2001
From: =?utf8?q?J=C3=A9r=C3=B4me=20Benoit?= <jerome.benoit@piment-noir.org>
Date: Fri, 3 Mar 2017 17:13:51 +0100
Subject: [PATCH] TP2 exo3: Add quick sort implementation.
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Signed-off-by: Jérôme Benoit <jerome.benoit@piment-noir.org>
---
 TP2/exo1/exo1.c   |  4 +--
 TP2/exo3/Makefile | 79 +++++++++++++++++++++++++++++++++++++++++++++++
 TP2/exo3/exo3.c   | 58 ++++++++++++++++++++++++++++++++++
 3 files changed, 139 insertions(+), 2 deletions(-)
 create mode 100644 TP2/exo3/Makefile
 create mode 100644 TP2/exo3/exo3.c

diff --git a/TP2/exo1/exo1.c b/TP2/exo1/exo1.c
index 25d6c99..514f794 100644
--- a/TP2/exo1/exo1.c
+++ b/TP2/exo1/exo1.c
@@ -1,6 +1,6 @@
 #include <stdio.h>
 
-void permuter (int T[], int i1, int i2) {
+void permuter(int T[], int i1, int i2) {
     int tmp = T[i1];
     T[i1] = T[i2];
     T[i2] = tmp;
@@ -27,7 +27,7 @@ void SelecEch(int T[], int n) {
 
 void AfficheTab(int T[], int n) {
     for (int i = 0; i < n; i++) {
-        printf("valeur a index=%d=%d\n", i, T[i]);
+        printf("T[%d]=%d\n", i, T[i]);
     }
 }
 
diff --git a/TP2/exo3/Makefile b/TP2/exo3/Makefile
new file mode 100644
index 0000000..d6f215e
--- /dev/null
+++ b/TP2/exo3/Makefile
@@ -0,0 +1,79 @@
+# Sample Makefile to build simple project.
+#
+# This Makefile expect all source files (.c) to be at the same level, in the
+# current working directory.
+#
+# It will automatically generate dependencies, compile all files, and produce a
+# binary using the provided name.
+#
+# Set BINARY_NAME to the name of the binary file to build.
+# Set BUILD_TYPE to either debug or release
+#
+# Automatic dependencies code from:
+# http://make.mad-scientist.net/papers/advanced-auto-dependency-generation/#tldr
+BINARY_NAME=exo3
+BUILD_TYPE=debug
+
+# ====================================
+# DO NOT CHANGE STUFF BEYOND THIS LINE
+# ====================================
+
+all: $(BINARY_NAME)
+
+CC=gcc
+LD=gcc
+
+WARN_FLAGS = -Wall -Wextra
+STD_FLAG = -std=c99
+
+ifeq ($(BUILD_TYPE),debug)
+BUILDDIR := .build/debug
+DEBUG_FLAG = -g
+STRIP_FLAG =
+OPTI_FLAG = -O0
+else
+BUILDDIR := .build/release
+DEBUG_FLAG =
+STRIP_FLAG = -s
+OPTIFLAG = -O3
+endif
+
+CFLAGS := $(CFLAGS) $(WARN_FLAGS) $(STD_FLAG) $(OPTI_FLAG) $(DEBUG_FLAG)
+LDFLAGS := $(LDFLAGS) $(STRIP_FLAG)
+
+OBJDIR := $(BUILDDIR)/objs
+$(shell mkdir -p $(OBJDIR))
+
+SRCS=$(wildcard *.c)
+OBJS=$(patsubst %.c,$(OBJDIR)/%.o,$(SRCS))
+
+DEPDIR := $(BUILDDIR)/deps
+$(shell mkdir -p $(DEPDIR))
+DEPFLAGS = -MT $@ -MMD -MP -MF $(DEPDIR)/$*.Td
+POSTCOMPILE = mv -f $(DEPDIR)/$*.Td $(DEPDIR)/$*.d
+
+$(BINARY_NAME): $(OBJS)
+	@echo "[LD ] $@"
+	@$(LD) $(CFLAGS) $(LDFLAGS) $^ $(LDLIBS) -o $@
+
+$(OBJDIR)/%.o: %.c $(DEPDIR)/%.d
+	@echo "[C  ] $*"
+	@$(CC) $(DEPFLAGS) $(CFLAGS) -c $< -o $@
+	@$(POSTCOMPILE)
+
+$(DEPDIR)/%.d: ;
+
+.PRECIOUS: $(DEPDIR)/%.d
+
+include $(wildcard $(patsubst %,$(DEPDIR)/%.d,$(basename $(SRCS))))
+
+clean:
+	@echo "[CLN]"
+	-@rm -r $(BUILDDIR)
+	-@rm $(BINARY_NAME)
+
+disassemble: $(BINARY_NAME)
+	objdump -d $< | less
+
+symbols: $(BINARY_NAME)
+	objdump -t $< | sort | less
diff --git a/TP2/exo3/exo3.c b/TP2/exo3/exo3.c
new file mode 100644
index 0000000..2970b00
--- /dev/null
+++ b/TP2/exo3/exo3.c
@@ -0,0 +1,58 @@
+#include <stdio.h>
+
+void permuter(int T[], int i1, int i2) {
+    int tmp = T[i1];
+    T[i1] = T[i2];
+    T[i2] = tmp;
+}
+
+void AfficheTab(int T[], int n) {
+    for (int i = 0; i < n; i++) {
+        printf("T[%d]=%d\n", i, T[i]);
+    }
+}
+
+void TriRapide(int T[], int n) {
+    int pivot = T[0];
+    int TP[n];
+    int TG[n];
+    int np = 0;
+    int ng = 0;
+
+    if (n == 1) {;}
+    else if (n == 2) {
+        if (T[0] > T[1]) { permuter(T, 0, 1); }
+    }
+    else if (n > 2) {
+        for (int i = 1; i < n; i++) {
+            if (T[i] < pivot) {
+                TP[np] = T[i];
+                np++;
+            } else { 
+                TG[ng] = T[i];
+                ng++;
+            }
+        }   
+        TriRapide(TP, np);
+        TriRapide(TG, ng);
+        for (int i = 0; i < np; i++) {
+            T[i] = TP[i];
+        }
+        T[np] = pivot;
+        for (int i = 0; i < ng; i++) {
+            T[np + 1 + i] = TG[i];
+        }
+    }
+}
+
+int main() {
+    int T[7] = {4, 2, 7, 3, 8, 6, 5};
+    
+    AfficheTab(T, 7);
+    
+    TriRapide(T, 7);
+
+    AfficheTab(T, 7);
+
+    return 0;
+}
-- 
2.34.1