0_0_34590469_13520.c: In function 'main':
0_0_34590469_13520.c:18:5: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for (int i = 0; i < M; i++) {
^
0_0_34590469_13520.c:18:5: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
0_0_34590469_13520.c:22:14: error: redefinition of 'i'
for (int i = 0; i < N; i++) {
^
0_0_34590469_13520.c:18:14: note: previous definition of 'i' was here
for (int i = 0; i < M; i++) {
^
0_0_34590469_13520.c:22:5: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for (int i = 0; i < N; i++) {
^
0_0_34590469_13520.c:25:7: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for (int j = 0; j < Student[i].m; j++) {
^
0_0_34590469_13520.c:31:14: error: redefinition of 'i'
for (int i = 0; i < N-1; i++) {
^
0_0_34590469_13520.c:22:14: note: previous definition of 'i' was here
for (int i = 0; i < N; i++) {
^
0_0_34590469_13520.c:31:5: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for (int i = 0; i < N-1; i++) {
^
0_0_34590469_13520.c:34:7: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for (int j = i+1; j < N; j++) {
^
0_0_34590469_13520.c:45:14: error: redefinition of 'i'
for (int i = 0; i < N-1; i++) {
^
0_0_34590469_13520.c:31:14: note: previous definition of 'i' was here
for (int i = 0; i < N-1; i++) {
^
0_0_34590469_13520.c:45:5: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for (int i = 0; i < N-1; i++) {
^
0_0_34590469_13520.c:46:7: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for (int j = i+1; j < N; j++) {
^
0_0_34590469_13520.c:56:14: error: redefinition of 'i'
for (int i = 0; i < N; i++) {
^
0_0_34590469_13520.c:45:14: note: previous definition of 'i' was here
for (int i = 0; i < N-1; i++) {
^
0_0_34590469_13520.c:56:5: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for (int i = 0; i < N; i++) {
^
0_0_34590469_13520.c:65:14: error: redefinition of 'i'
for (int i = N-1; i >= 0; i--) {
^
0_0_34590469_13520.c:56:14: note: previous definition of 'i' was here
for (int i = 0; i < N; i++) {
^
0_0_34590469_13520.c:65:5: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for (int i = N-1; i >= 0; i--) {
^
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