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View Compilation Error

0_0_22637352_23572.c: In function 'main':
0_0_22637352_23572.c:13:9: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
         for(int i=0;i<n;i++)
         ^
0_0_22637352_23572.c:13:9: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
0_0_22637352_23572.c:15:13: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
             for(int j=0;j<m;j++)
             ^
0_0_22637352_23572.c:20:17: error: redefinition of 'i'
         for(int i=0;i<n;i++)
                 ^
0_0_22637352_23572.c:13:17: note: previous definition of 'i' was here
         for(int i=0;i<n;i++)
                 ^
0_0_22637352_23572.c:20:9: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
         for(int i=0;i<n;i++)
         ^
0_0_22637352_23572.c:22:12: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
            for(int j=0;j<m;j++)
            ^
0_0_22637352_23572.c:29:17: error: redefinition of 'i'
         for(int i=0;i<n;i++)
                 ^
0_0_22637352_23572.c:20:17: note: previous definition of 'i' was here
         for(int i=0;i<n;i++)
                 ^
0_0_22637352_23572.c:29:9: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
         for(int i=0;i<n;i++)
         ^
0_0_22637352_23572.c:31:12: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
            for(int j=0;j<m;j++)
            ^
0_0_22637352_23572.c:39:17: error: redefinition of 'i'
         for(int i=0;i<n;i++)
                 ^
0_0_22637352_23572.c:29:17: note: previous definition of 'i' was here
         for(int i=0;i<n;i++)
                 ^
0_0_22637352_23572.c:39:9: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
         for(int i=0;i<n;i++)
         ^
0_0_22637352_23572.c:41:13: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
             for(int j=0;j<m;j++)
             ^
0_0_22637352_23572.c:50:17: error: redefinition of 'i'
         for(int i=0;i<n;i++)
                 ^
0_0_22637352_23572.c:39:17: note: previous definition of 'i' was here
         for(int i=0;i<n;i++)
                 ^
0_0_22637352_23572.c:50:9: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
         for(int i=0;i<n;i++)
         ^
0_0_22637352_23572.c:57:17: error: redefinition of 'i'
         for(int i=0;i<m;i++)
                 ^
0_0_22637352_23572.c:50:17: note: previous definition of 'i' was here
         for(int i=0;i<n;i++)
                 ^
0_0_22637352_23572.c:57:9: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
         for(int i=0;i<m;i++)
         ^


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