View Compilation Error

0_0_25174901_31690.cpp:1:1: error: expected unqualified-id before 'for'
 for(int i=1;i<=n;i++)
 ^
0_0_25174901_31690.cpp:1:13: error: 'i' does not name a type
 for(int i=1;i<=n;i++)
             ^
0_0_25174901_31690.cpp:1:18: error: 'i' does not name a type
 for(int i=1;i<=n;i++)
                  ^
0_0_25174901_31690.cpp:3:1: error: expected unqualified-id before 'for'
 for(int i=2;i<=m;i++)
 ^
0_0_25174901_31690.cpp:3:13: error: 'i' does not name a type
 for(int i=2;i<=m;i++)
             ^
0_0_25174901_31690.cpp:3:18: error: 'i' does not name a type
 for(int i=2;i<=m;i++)
                  ^
0_0_25174901_31690.cpp:4:14: error: 'j' does not name a type
  for(int j=1;j<=n;j++)
              ^
0_0_25174901_31690.cpp:4:19: error: 'j' does not name a type
  for(int j=1;j<=n;j++)
                   ^
0_0_25174901_31690.cpp:5:15: error: 'k' does not name a type
   for(int k=1;k<=n;k++)
               ^
0_0_25174901_31690.cpp:5:20: error: 'k' does not name a type
   for(int k=1;k<=n;k++)
                    ^