1st-version

Homework10/2018202062LRB/1.c

@@ -0,0 +1,22 @@
+#include <stdio.h>
+
+int main()
+{
+	FILE *fr = fopen("a.in", "r"), *fw = fopen("a.out", "w");
+	if (fr == NULL)
+	{
+		puts("error");
+		return 0;
+	}
+	int n;
+	fscanf(fr, "%d\n", &n);
+	double d;
+	char c;
+	while (n--)
+	{
+		fscanf(fr, "%lf %c", &d, &c);
+		fwrite(&d, sizeof(double), 1, fw);
+		fwrite(&c, sizeof(char), 1, fw);
+	}
+	return 0;
+}

Homework10/2018202062LRB/2.c

@@ -0,0 +1,24 @@
+#include <stdio.h>
+
+int main()
+{
+	FILE *fr = fopen("a.out", "r"), *fw = fopen("a.in", "w");
+	if (fr == NULL)
+	{
+		puts("error");
+		return 0;
+	}
+	fseek(fr, 0L, SEEK_END);
+	int n = ftell(fr) / 9;
+	fseek(fr, 0L, SEEK_SET);
+	fprintf(fw, "%d\n", n);
+	while (n--)
+	{
+		double f;
+		char c;
+		fread(&f, sizeof(double), 1, fr);
+		fread(&c, sizeof(char), 1, fr);
+		fprintf(fw, "%5.3lf %c\n", f, c);
+	}
+	return 0;
+}

Homework10/2018202062LRB/readme.MD

@@ -0,0 +1,6 @@
+实在不会压缩..
+
+1.c将a.in压缩为a.out
+2.c将a.out解压为a.in
+
+a.in格式：第一行节点数量，后面一行一个double和一个char，代表一个节点