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View Compilation Error

0_0_23952114_12014.c: In function 'main':
0_0_23952114_12014.c:8:4: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
    for(int i=0;i<n;i++)
    ^
0_0_23952114_12014.c:8:4: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
0_0_23952114_12014.c:10:13: error: redefinition of 'i'
     for(int i=0;i<n;i++)
             ^
0_0_23952114_12014.c:8:12: note: previous definition of 'i' was here
    for(int i=0;i<n;i++)
            ^
0_0_23952114_12014.c:10:5: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
     for(int i=0;i<n;i++)
     ^
0_0_23952114_12014.c:11:4: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
    for(int j=i+1;j<n;j++)
    ^
0_0_23952114_12014.c:16:12: error: redefinition of 'i'
    for(int i=0;i<(n/2+1);i++)
            ^
0_0_23952114_12014.c:10:13: note: previous definition of 'i' was here
     for(int i=0;i<n;i++)
             ^
0_0_23952114_12014.c:16:4: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
    for(int i=0;i<(n/2+1);i++)
    ^


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