0_0_35088069_32427.c: In function 'main':
0_0_35088069_32427.c:10:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for(int i = 1; i <= m; ++ i)
^
0_0_35088069_32427.c:10:3: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
0_0_35088069_32427.c:11:4: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for(int j = 1; j <= n; ++ j)
^
0_0_35088069_32427.c:16:11: error: redefinition of 'i'
for(int i = 1; i <= m; ++ i)
^
0_0_35088069_32427.c:10:11: note: previous definition of 'i' was here
for(int i = 1; i <= m; ++ i)
^
0_0_35088069_32427.c:16:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for(int i = 1; i <= m; ++ i)
^
0_0_35088069_32427.c:17:12: error: redefinition of 'j'
for(int j = 1; j <= n; ++ j)
^
0_0_35088069_32427.c:11:12: note: previous definition of 'j' was here
for(int j = 1; j <= n; ++ j)
^
0_0_35088069_32427.c:17:4: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for(int j = 1; j <= n; ++ j)
^
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