View Compilation Error

889688_0_0_21604.c: In function `main':
889688_0_0_21604.c:7: error: redeclaration of 'i' with no linkage
889688_0_0_21604.c:6: error: previous declaration of 'i' was here
889688_0_0_21604.c:7: error: 'for' loop initial declaration used outside C99 mode
889688_0_0_21604.c:8: error: redeclaration of 'j' with no linkage
889688_0_0_21604.c:6: error: previous declaration of 'j' was here
889688_0_0_21604.c:8: error: 'for' loop initial declaration used outside C99 mode