0_0_23753857_5581.c:4:1: error: unknown type name 'using'
using namespace std;
^
0_0_23753857_5581.c:4:17: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'std'
using namespace std;
^
0_0_23753857_5581.c: In function 'main':
0_0_23753857_5581.c:11:5: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for(int i = 0; i < t; i++) {
^
0_0_23753857_5581.c:11:5: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
0_0_23753857_5581.c:14:9: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for(int j = 1; j <= n; j++) {
^
0_0_23753857_5581.c:20:17: error: redefinition of 'j'
for(int j = 1; j <= n; j++) {
^
0_0_23753857_5581.c:14:17: note: previous definition of 'j' was here
for(int j = 1; j <= n; j++) {
^
0_0_23753857_5581.c:20:9: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for(int j = 1; j <= n; j++) {
^
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