C++ :: Store Random Numbers And Sort Function

#include <iostream>
#include <iomanip>
#include <cstdlib>
#include <ctime>
#include <algorithm>
using namespace std;

const int s = 12, p = 6;
int x[s][p];

[Code] ....

Names: P1 P2 P3 P4 P5 P6 AVER.

EVIKE 41 85 72 38 80 69 64.17
KKASV 65 68 96 22 49 67 71.86
YCXFX 51 61 63 87 66 24 70.64
FADPO 80 83 71 60 64 52 80.11
OEJUV 90 60 49 31 23 99 72.02
POEYL 94 11 25 24 51 15 48.67
VRVIP 13 39 67 97 19 76 59.94
QNQRQ 12 33 99 18 92 35 58.16
OOVAO 74 0 95 71 39 33 61.69
NCBXC 39 32 37 45 57 71 57.12
ATXDK 95 5 71 24 86 8 57.69
IXJSW 51 54 74 24 75 70 67.61
AVER. 58.75 49.15 72.35 51.11 62.68 56.81

1: Sort Alphabetically
2: Sort Grades Increasing Order (Student)
3: Sort Grades Increasing Order (Project)
4: End Program Enter choice: 2

Names: P1 P2 P3 P4 P5 P6 AVER.

XXZRZ 41 72 38 80 69 65 60.83
OKETL 68 85 22 49 67 51 67.14
GZQRC 61 63 87 66 24 80 74.69
OJWAY 83 71 60 64 52 90 82.45
PSAJL 60 49 31 23 96 94 72.57
AOVLZ 11 25 24 51 15 13 35.26
CPWSR 39 67 97 19 76 12 57.54
IZCOB 33 99 18 92 35 74 68.09
IJTVD 0 95 71 39 33 39 57.52
LDVGY 32 37 45 57 71 95 65.75
MBORX 5 71 24 86 8 51 51.79
XOHGM 54 74 24 75 70 0 58.13
AVER. 40.58 70.72 50.98 62.66 56.56 60.05

1: Sort Alphabetically
2: Sort Grades Increasing Order (Student)
3: Sort Grades Increasing Order (Project)
4: End Program Enter choice:

Why my sort is not working. Also, I want to keep the same random numbers for the continuation of the program, I don't want new randomized values when I display the table.