solve 13

6 files changed, 316 insertions, 0 deletions

diff --git a/.gitignore b/.gitignore
index c347055..14cd7b8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 *.hi
 *.o
 main
+*.ppu
diff --git a/0013/Prim.pas b/0013/Prim.pas
new file mode 100644
index 0000000..1cdb6a6
--- /dev/null
+++ b/0013/Prim.pas
@@ -0,0 +1,7 @@
+unit Prim;
+
+interface
+
+implementation
+
+end.
diff --git a/0013/Vector.tpl.pas b/0013/Vector.tpl.pas
new file mode 100644
index 0000000..6463377
--- /dev/null
+++ b/0013/Vector.tpl.pas
@@ -0,0 +1,54 @@
+unit Vector_{UNIT}.{T};
+
+interface
+uses
+    {UNIT};
+
+type
+    TVector = record
+        len: Longint;
+        capacity: Longint;
+        buf: Array of {T};
+    end;
+    PElem = ^{T};
+    TElem = {T};
+
+procedure init(var this: TVector);
+function get_elem(var this: TVector; n: Longint): PElem; 
+procedure set_elem(var this: TVector; n: Longint; elem: {T});
+procedure push_elem(var this: TVector; elem: {T});
+
+implementation
+procedure init(var this: TVector);
+begin
+    this.len := 0;
+    this.capacity := 16;
+    setLength(this.buf, 16);
+end;
+
+function get_elem(var this: TVector; n: Longint): PElem;
+begin
+    get_elem := @(this.buf[n]);
+end;
+
+procedure set_elem(var this: TVector; n: Longint; elem: {T});
+begin
+    this.buf[n] := elem;
+end;
+
+procedure push_elem(var this: TVector; elem: {T});
+var
+    newcap: Longint;
+begin
+    if this.len = this.capacity - 1 then
+    begin
+        newcap := this.capacity * 2;
+        setLength(this.buf, newcap);
+        this.capacity := newcap;
+    end;
+    this.buf[this.len] := elem;
+    this.len := this.len + 1;
+end;
+
+end.
+
diff --git a/0013/Vector_Prim.Integer.pas b/0013/Vector_Prim.Integer.pas
new file mode 100644
index 0000000..7ff4775
--- /dev/null
+++ b/0013/Vector_Prim.Integer.pas
@@ -0,0 +1,55 @@
+unit Vector_Prim.Integer;
+
+interface
+uses
+    Prim;
+
+type
+    TVector = record
+        len: Longint;
+        capacity: Longint;
+        buf: Array of Integer;
+    end;
+    PElem = ^Integer;
+    TElem = Integer;
+
+procedure init(var this: TVector);
+function get_elem(var this: TVector; n: Longint): PElem; 
+procedure set_elem(var this: TVector; n: Longint; elem: Integer);
+procedure push_elem(var this: TVector; elem: Integer);
+
+implementation
+procedure init(var this: TVector);
+begin
+    this.len := 0;
+    this.capacity := 16;
+    setLength(this.buf, 16);
+end;
+
+function get_elem(var this: TVector; n: Longint): PElem;
+begin
+    get_elem := @(this.buf[n]);
+end;
+
+procedure set_elem(var this: TVector; n: Longint; elem: Integer);
+begin
+    this.buf[n] := elem;
+end;
+
+procedure push_elem(var this: TVector; elem: Integer);
+var
+    newcap: Longint;
+begin
+    if this.len = this.capacity - 1 then
+    begin
+        newcap := this.capacity * 2;
+        setLength(this.buf, newcap);
+        this.capacity := newcap;
+    end;
+    this.buf[this.len] := elem;
+    this.len := this.len + 1;
+end;
+
+end.
+
+
diff --git a/0013/input b/0013/input
new file mode 100644
index 0000000..869c977
--- /dev/null
+++ b/0013/input
@@ -0,0 +1,101 @@
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+
diff --git a/0013/main.pas b/0013/main.pas
new file mode 100644
index 0000000..6d473be
--- /dev/null
+++ b/0013/main.pas
@@ -0,0 +1,98 @@
+program main;
+
+uses
+    Vector_Prim.Integer;
+
+type
+    TVec = Vector_Prim.Integer.TVector;
+
+procedure revvec(var vec: TVec);
+var
+    i: Longint;
+    j: Longint;
+    t: Integer;
+begin
+    i := 0;
+    j := vec.len-1;
+    while i < j do
+    begin
+        t := vec.buf[i];
+        vec.buf[i] := vec.buf[j];
+        vec.buf[j] := t;
+        i := i + 1;
+        j := j - 1;
+    end;
+end;
+
+function readnum(): TVec;
+var
+    v: TVec;
+    c: Char;
+begin
+    init(v);
+    while true do
+    begin
+        if eof then
+            break;
+        read(c);
+        if c = #10 then
+            break;
+        push_elem(v, ord(c) - ord('0'));
+    end;
+    revvec(v);        
+    readnum := v;
+end;
+
+function add(a: TVec; b: TVec): TVec;
+var
+    ret: TVec;
+    carry, len, i, reg: Integer;
+    na, nb: Integer;
+begin
+    init(ret);
+    carry := 0;
+    len := a.len;
+    if b.len > len then
+        len := b.len;
+
+    for i := 0 to len-1 do
+    begin
+        na := 0;
+        nb := 0;
+        if i < a.len then
+            na := a.buf[i];
+        if i < b.len then
+            nb := b.buf[i];
+        reg := na + nb + carry;
+        carry := reg div 10;
+        push_elem(ret, reg mod 10);
+    end;
+    if carry <> 0 then
+        push_elem(ret, 1);
+    add := ret;
+end;
+
+procedure printnum(n: TVec);
+var
+    i: Integer;
+begin
+    for i := n.len-1 downto n.len-10 do
+        write(chr(ord('0') + n.buf[i]));
+    writeln('');
+end;
+
+const
+    N = 100;
+var
+    nums: Array[1..N] of TVec;
+    res: TVec;
+    i: Integer;
+begin
+    init(res);
+    for i := 1 to N do
+        nums[i] := readnum();
+    res := nums[1];
+    for i := 2 to N do
+        res := add(res, nums[i]);
+    printnum(res);
+end.