0_0_30250391_6723.c: In function 'solve':
0_0_30250391_6723.c:27:15: error: 'INFINITY' undeclared (first use in this function)
double ans = INFINITY;
^
0_0_30250391_6723.c:27:15: note: each undeclared identifier is reported only once for each function it appears in
0_0_30250391_6723.c:31:2: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for (int i = mid; i >= start && ps[mid].x - ps[i].x < ans; --i) {
^
0_0_30250391_6723.c:31:2: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
0_0_30250391_6723.c:34:11: error: redefinition of 'i'
for (int i = mid + 1; i < end && ps[i].x - ps[mid].x < ans; ++i) {
^
0_0_30250391_6723.c:31:11: note: previous definition of 'i' was here
for (int i = mid; i >= start && ps[mid].x - ps[i].x < ans; --i) {
^
0_0_30250391_6723.c:34:2: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for (int i = mid + 1; i < end && ps[i].x - ps[mid].x < ans; ++i) {
^
0_0_30250391_6723.c:38:11: error: redefinition of 'i'
for (int i = 0; i < top; ++i) {
^
0_0_30250391_6723.c:34:11: note: previous definition of 'i' was here
for (int i = mid + 1; i < end && ps[i].x - ps[mid].x < ans; ++i) {
^
0_0_30250391_6723.c:38:2: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for (int i = 0; i < top; ++i) {
^
0_0_30250391_6723.c:39:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for (int j = i + 1; j < top && qs[j].y - qs[i].y < ans; ++j) {
^
0_0_30250391_6723.c: In function 'main':
0_0_30250391_6723.c:51:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for (int i = 0; i < n; ++i) {
^
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