Compilare: main.cpp: In function 'int main()': main.cpp:23:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(i = 1; i < n; i++) ^~~ main.cpp:32:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' for(i = 1; i <= n; i++) ^~~ main.cpp:11:18: warning: unused variable 'x' [-Wunused-variable] int i, j, n, x; ^ main.cpp:9:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("custi.in", "r", stdin); ^ main.cpp:10:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("custi.out", "w", stdout); ^ main.cpp:12:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ main.cpp:15:34: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &v[i][j]); ^